Which format is better fb epub mobi. Which e-book format is best to choose for a smartphone? What are the formats?

Reading devices e-books(so called readers ) have long ago turned from something very exotic into a household device as common as a smartphone. Users very quickly realized the beauty of readers: they can download hundreds (if not thousands) of books into in electronic format, the eyes do not deteriorate when reading (electronic ink does not glow), you can customize any text parameters, including the font typeface and its size, the book itself remembers the page you stopped on, and so on - list all sorts of conveniences compared to using paper books it can take a very long time. However, users (especially beginners) have one problem: books circulate on the Internet in various formats, of which there are many: FB2, EPUB, MOBI, PDF, RTF, TXT, and so on. It’s also good when the site offers different formats to choose from - for example, on the website Litres.ru, where this choice is very wide.

Types of formats

However, for novice users, all these EPUB, FB2 and other DjVu are a dark forest, so let's figure out what they are, how they differ and in what devices they are used. So, the formats of electronic books (documents): 1. FB2 (FictionBook)- format (standard) developed by Dmitry Gribov and a group of enthusiasts. Excellent for creating structured books, it takes up a small amount of space, is easily archived, and can be easily converted into other formats. It is an XML file, structurally similar to an email letter. The main disadvantage is that since it is actually Russian development, this format is completely unknown in the world and is almost not supported by any of the branded readers - Sony, Amazon, Barnes&Noble, Kobo. On Litres it is written that FB2 is “supported by all Russian readers,” but this is not entirely accurate. FB2 is supported by almost all Chinese readers with Ukrainian or Russian software. FB2 can also be supported by well-known Western readers (for example, Sony), which have special Russian firmware installed. (Well, recently official firmware supporting FB2 was released for the latest Sony PRS-T1 reader.) 2. EPUB (Electronic PUBlishing)- the most common e-book format in the world (and already very common in Russia). In structure, it is similar to a website packaged in an archive, and if FB2 can be distributed both in expanded form and in a ZIP archive (many readers can read FB2 in ZIP), then EPUB is, by definition, a book packaged by an archiver. EPUB is supported by almost any readers - both Western and Chinese (Russian-Ukrainian). Therefore, this is the most preferred format. (With rare exceptions.) 3. MOBI- a specialized format created specifically for the Amazon Kindle reader and, accordingly, supported only by this reader. Moreover, Kindle does not support any other e-book formats (except PDF and TXT, but this is a separate conversation). 4. TXT- normal text document format. It is supported by all readers, but reading books in TXT is for complete masochists. No markup, no normal hyphens, no format alignment, but there are line breaks and other delights. Into the furnace! 5. PDF(Adobe Portable Document Format) - one of the most common formats electronic documents(usually not books). PDF is not particularly convenient to read on readers, in addition, it is very cumbersome, so in PDF for readers, as a rule, only documents with all sorts of formulas, illustrations, and other things are written. 6. LRF- a special format for e-books from Sony. However, it has already been practically replaced by the EPUB format, which Sony supports. 7. DjVu(pronounced déjà vu) is a format for storing tightly compressed scanned documents, such as old books. It is used very rarely in readers, because reading scanned books on a reader is almost impossible due to bad quality display and small screen size. 8. RTF (Rich Text Format)- a universal format for storing text documents. It is used very rarely in readers - for compatibility reasons. 9. DOC- document format Microsoft Office. Some readers support it, but few people usually need to read documents on a reader. That's somehow not what they were made for. True, some books still circulate on the Internet in DOC, but it’s easier to convert them into the same EPUB. There are all sorts of other formats, but you don’t have to bother yourself with this - they are unlikely to ever be useful. For most users, with a few exceptions, the EPUB format is usually sufficient. Almost all readers (except Kindle) support it; books in this format have small size, good structure, allow you to include a table of contents, illustrations, and so on. Many online libraries store books in this format, and you can also find huge collections of books in EPUB format in torrents. What are the conclusions? EPUB is your choice, whether you have a Western reader (Sony, Barnes&Noble, Kobo) or a Chinese-Russian-Ukrainian one. But for the Kindle you will need to look for books in the MOBI format or, which is much simpler, simply convert the same EPUB or FB2 to this format. This procedure is carried out easily and quickly using a special program. We'll look at how this is done in a separate article.

Reading time: 4 minutes

Digitization or conversion of analog, paper and other media into digital form, available for recording on electronic media, is becoming an increasingly popular and accessible operation.

Thanks to the latest computer technologies, it is possible to digitize almost any media - photographs, video cassettes, old vinyl records, and of course books.

You can easily take such a library with you wherever you go, to work, on a visit or on vacation, all you need is a laptop, mobile phone or a special device for reading e-books, which can be purchased without problems at any computer store.

Creating such an electronic book, or as they also say ebook, is very simple. To do this, you will need a high-quality scanner and text recognition software.

The next step is to recognize digital image pages, and the resulting text can be saved both in more familiar formats and special ones, such as .fb2, .lit or .prc.

Converting a graphic image of text into an editable format is usually done using programs such as Nuance OmniPage Professional, ABBYY FineReader or others like them.

Today, the most common e-book formats are the familiar ones .pdf, .DjVu, .rtf or doc. Other, but also quite well-known to the mass user, formats are a little less common. These include .txt, .docx, .chm, .exe, .odt, .dot, .dotx.

As a rule, most users do not have problems opening these formats, so let’s move on to considering e-book formats that are used much less frequently. And let's start with the most famous of them.fb2.

FB2

(FictionBook) – A fairly simple, open and convenient format based on XML, created by Russian developers. Books in this format are easily converted, can contain images and are lightweight.

You can open this format using AllReader, AlReader2, ICE Book Reader or Cool Reader. And besides, you can create a book in this format yourself using the htmlDocs2fb2 program.

Unfortunately, this program only successfully processes HTML or XML files, so you will need to first convert the desired file into a web page.

LIT

Closed format from Microsoft. You can open it with a special MS Reader program. To convert into a more convenient format, you can use the Convert LIT program or visit the specialized website www.online-convert.com, where you can convert it into any human-readable format.

R.B.

Quite a rare and currently almost unused format. Was developed for reading Rocket Book e-books.

ePub

Open format of digital books. Essentially it is an archive containing xHTML, HTML, PDF, XML texts, as well as graphic images.

You can open this marvel with the programs Cool Reader, AlReader, and, if desired, convert it to another format more suitable for you.

BBeB

Format developed by Sony for Sony Librie and Sony Reader devices. Available in the form .LRF, .LRS, .LRX. Opens with Sony Reader Library, Caliber, Book Designer applications or converted. But as a rule, these formats are very rare.

PRC, TCR

– Also quite rare formats, specially designed for Palm and Psion communicators. On a computer, files of this format can be successfully viewed with the ICE Book Reader Professional program.

PDB (PalmDOC, AportisDoc)

Format developed for Palm OS. Essentially a PDB is a simple database file. Most often it can be found on smartphones running operating system Symbian 9.

To view it on your phone, use the DC Co iSilo program, but on a PC you can try to open it using ICE Book Reader Professional or DjVuReader, although in this case there may be problems with the encoding.

TR (ToRaTRPW)

Another rare format. Distinctive feature.TR format – the ability to index text, and therefore the TR format is sometimes used when compiling catalogs of digital books. Files of this format can be opened by Tome Raider.

iSilo

format of electronic books used on pocket computers. By the way, the program with which you can read files with this extension is called iSilo, although it only works on PDAs.

MOBI

Mobipocket e-book files. To view files in .MOBI format, use Mobipocket Reader, Book Designer, Amazon Kindle for PC.

All of the listed formats are quite rare, and by the way, this is not a complete list. Most of these formats are used to create e-books for mobile devices: phones, smartphones and other “handheld devices”, as well as for special portable “readers”.

Such devices (readers), unlike conventional PCs and laptops, are more convenient and practical, “able” to read different formats of electronic books, consume incomparably less energy, and can also have special screens using “E-Ink” technology, i.e. . electronic ink, so reading from such a screen does not tire your eyes.

It is simply impossible not to appreciate the benefits of e-books in our digital age. But even despite such wonderful possibilities, let’s not forget about the paper publications that are still familiar to us; it will still be sad if someday they disappear from store shelves and turn into another antique item.

In conclusion, I suggest watching a video review of several devices for reading e-books from Chip magazine.

Sometimes it seems that deciding on a format is quite difficult, there are so many of them and each has its own advantages. Many authors ask the question: “How to choose a format for an e-book?” We conducted our analysis of formats and found out which is the best format for ordinary books. We carefully studied many formats, and considered them both from the point of view of the convenience of the reader and from the point of view of the convenience of the author. Let's dive into the details a little and see what influenced our choice.

Why is ePub the best format?

During the development of our services, we studied some technical nuances that affect appearance and working with an e-book.

Let's start with the simplest thing - managing the display of the book. Those. the ability for the reader to change the font size and page orientation. EPUB adapts perfectly to changes in device screen size or font size. I would like to note that the specification states that in fact the format supports 2 layout modes - the first (reflowable), when you can change these parameters, and the second (fixed-layout), when you can clearly indicate what is where.

Let's look at the layout modes in a little more detail.

Reflowable markup

It can be translated into Russian as fluid, adaptive or floating. Allows you to fit the contents of the book to the device screen, change the color and font size. Ideal for regular books with in plain text- novels, poems, technical literature. Those. anything where clear image linking or complex visual representation is not required.

This markup is not suitable for visual interactive books and children's books with many illustrations, that is, those that require spatial reference of graphics, various combinations of pictures and sidebars. The EPUB format itself allows you to create interactive books, but the adaptive design of such books is a real art.

This is what responsive markup looks like

Using this markup is ideal when you don't know exactly where and how your book will be reproduced. Due to the flexibility of the layout, the book will be displayed correctly on almost any device, from a computer to some kind of smart watch. Plus, this markup is perfect for people with disabilities.

Fixed layout - fixed-layout

This type of markup implies that all elements have a clearly defined position on the page with a clearly indicated size. This markup is in a format that most closely resembles a physical medium, such as the page of a regular paper book. Everything is in its place and there is no adaptation. On devices, adaptation most often takes the form of scaling with all the ensuing consequences. What looks acceptable on a computer screen is already too small on a tablet, and cannot be seen at all on a smartphone screen. Well, the game of zooming in and out turns into torture for the reader.

Example of displaying fixed layout

This format is suitable when you know for sure that your work will be read on a medium with a specific size for which your work will be laid out. Initially, it is assumed that this markup is designed for further printing of the work, so it indicates the size and format of the future media. We Not We recommend using this markup for e-books, as it limits the reading area of ​​books to devices with a certain screen size.

The most common digital representative of this markup is the PDF format, but EPUB also supports it.

We decided to summarize popular formats in a table and show support for various markup inside them

We sorted out the layout. Now let's look at the most worrying moment for authors - copyright.

Support for copyright protection at the level of e-book formats

As a rule, authors insist on supporting DRM (Digital Rights Management) or technical means of copyright protection in e-books. This is one of the most unpleasant topics for both authors and readers, but it also affects the interests of publishers. And the main problem is that there is no reliable method of copy protection, because... The book is a source of predominantly textual information presented in graphic form. It is possible to create an extremely secure way to deliver content by encrypting the file to a special separate application or even a special separate book reader, but this will all be bypassed by a simple camera and subsequent OCR. So all the most complex and unpleasant procedures for everyone will be leveled out by the most primitive copying method, which is already more than two centuries old. Everything that the human eye sees, the camera will also see. And then it’s a matter of technology.

So, what is the situation with DRM support in various formats? We collected information and placed it in a table

The table shows that ePub, PDF and Mobipocket are formats that perfectly support copyright protection.

However, as we noted above, DRM no longer creates anything but inconvenience for the user. Many have been in a situation where they urgently need a book, but it is not in a format available for your device. As a rule, such a situation often takes a person by surprise or at the most inopportune moment. Usually people solve this in different ways, in most cases they simply look for another book on the same topic, but in an accessible format. As a result, the author loses readers and, of course, money.

The main problem of protecting the field of rights lies in the area of ​​educating people and their attitude towards copyright protection. For example, it never occurs to anyone to steal directly from a store, although everything is there, just stretch out your hand. The same goes for digital content. There is simply an awareness that the work belongs to the author and is the result of his work, which must be paid. The more people realize this, the fewer books will be stolen.

Providing legal access to books is one of the missions of our library.

Summarizing the above, we again come to the conclusion that ePub is an excellent choice from the point of view of copyright protection.

What's wrong with the EXE format?

There is a similar format called JAVA that was popular on older smartphones for a while. The essence is the same - the program, but only for a smartphone. Similar virus camouflage for smartphones.

About the FictionBook format

Popular under the name FB2. It is popular mainly in Russia and the post-Soviet space, so we can safely call it a national format.

However, this format contains logical layout, the book is divided into sections, which can be poems or prose. However, the format itself is very limited, because Not only is there no support for complex layout and formulas, but also banal things like bulleted lists.

There is an idea for the FB3 format, an improved FB2, which, judging by the description, is a clone of the ePub format. It uses a similar zip archive and separates files into description, text and pictures. Dmitry Gribov is working intensively on a new format and we hope that it will delight authors with new opportunities.

This format is well suited for simple fiction written in Russian.

About the TXT format

About the MOBI format

The MOBI format has several varieties in the form of the AZW family of formats, characterized by a higher degree of data compression.

• AZW1 is another name for the "topaz" format (also called .tpz). This variety is designed for storing scanned documents and is similar to DJVU. TPZ format - used on the WhisperNet network. WhisperNet is a custom 3G cellular network created by Amazon to support Kindle books and sync books, bookmarks, etc.
• AZW3 is another name for KF8. This format first appeared on the Kindle Fire. It is a combined ePub format with a Palm database, Amazon DRM protection, practically copying all the features of the ePub format and ensuring compatibility with older Kindle readers.
• AZW4 is a special format for textbooks (similar to PDF).
• AZK is a special iOS version of the MOBI format for Kindle Reader and other Apple products.
• KFX is one of the relatively new formats from Amazon, which appeared simultaneously with the Kindle Paperwhite 3. It is the successor to AZK. Features such as playing sounds and videos, displaying tables on a separate screen, and adding a new font and JXR image format were added to it.
• AZW8 is an extension to KFX, which is another dedicated format currently on Kindle paperwhite 3, Kindle Oasis and Kindle Voyage. Currently this is the most advanced format and is used in modern devices from Amazon.

About the PDF format

About the DJVU format

DJVU is a Lizardtech format that is increasingly used for scientific publications. The main purpose of this format is to store scanned images containing text and relatively simple graphics. Its main characteristics are that the compression ratio is approximately 10 times better than the .pdf format with the same quality. Nothing beats this nowadays for black and white text and images. Most likely you will find magazines such as Radio or Modelist-Konstruktor in it; their old versions are practically unavailable in other formats, because most of the old magazines are ordinary scanned images. In order for the search to work in it, a special invisible layer with text is added, obtained using text recognition systems (OCR). This format is completely unsuitable for e-books, since it cannot be adapted for devices with small screens, and many e-readers do not support it.

About the DOC, DOCX format

These are ordinary text documents, created in the Word editor from Microsoft Office. They can be edited, fonts and design changed. This format is supported by a very narrow list of devices and programs due to the very high complexity and closedness of the format, plus very often it cannot be displayed correctly. The format is suitable as a draft for a book, but is not suitable for distribution.

About the EPUB format

The only e-book format officially recognized by the world community (International Digital Publishing Forum). Supports almost everything you can dream of: complex formatting, lists, tables, formulas, footnotes, raster and vector images, various layout modes and DRM copyright protection.

There are quite a few programs for creating e-books in the above formats, but we have developed a specialized solution specifically for authors.

Rare and outdated formats

We would also like to talk about some rare formats.

• ABW is the file format used by AbiWord. If the file is compressed, it will be in ZABW format.
• ACSM is a file format used to provide DRM protection in Adobe eBooks PDF and ePUB.
• AEH is the file format used by eBooksWriter.
• BBeB is Sony's own format. Stands for Broadband EBook, also known as LRF due to its file extension.
• CBR/CBZ - Compressed container for images. R means that the images are compressed using the RAR archiver, and Z means that they are compressed using ZIP. The internal format can be any of several image formats, and CBR/CBZ readers display them as multiple pages of a book. The name means comic book reader, but is used for any books where the content contains mainly photographs.
• CHM is compressed HTML often used for Windows help files. It has become very popular for distributing texts and other support materials over the Internet.
• DNL is a digital web book format used by the Desktop author.
• DTB - Digital Talking Books - books for people who are blind, visually impaired, physically disabled, students with disabilities, or other print-disabled readers. DTBook sets the specifications for digital talking books (DTB) as part of DAISY.
• EBA is a proprietary e-book format. Chinese language eBook Readers are specifically supported.
• EBAML same as EBA 2.0 - Used on Dr. Yi Reader and other Chinese products.
• -ER.PDB - Palm database format for eReader. ER is used to differentiate this format.
• FUB is Franklin's e-book format.
• GPF - Ganaxa Publishing Format, allowing hot spots and embedded multimedia content.
• GPX is a Ganaxa secure document.
• IMP is an e-book format used by eBook Technologies ETI-1 (REB 1200 / Softbook Reader) or ETI-2 (EBookwise-1150 / Gemstar 1150). Some programs convert to it. It is considered a terminal format.
• -IS.PDB - Palm database format for the ISilo reader. IS is used to distinguish this format.
• KML - HieBook e-book format.
• LIT is Microsoft's own format for Microsoft Reader.
• LRC is a special accompanying format that should be a companion for audiobooks.
• LRF - also: BBeB book. Sony's own format. Supported by Sony Librie and Sony Reader.
• LRS - also: BBeB Xylog XML. Source code format for BBeB books, which is compiled into LRF for reading on the device.
• LRX is a BBeB protected document. Sony Librie and Sony Reader use formats that are incompatible with each other.
• MART is a proprietary format used only on the Martview website to distribute books consisting of images.
• NP format is a newspaper download format used by NewspaperDirect for their PressDisplay product.
• OEB - open book format. E-book format used by EBookwise-1150, MobiPocket and Microsoft Reader. This standard is an older version of ePUB.
• ODT is an open standard document format used in OpenOffice.org, Star Office and many other text editors.
• OSIS is an XML schema definition for the Bible and other biblical study texts.
• PKG is the format used in Apple Newton.
• PNPd - Format used by eReader. This is a popular format (also known as PML).
• PS - Postscript is supported in several readers, but is intended for sending information to a printer.
• RB - e-book format for Rocket eBook and Gemstar RCA REB 1100.
• RTF - Rich Text Format is a document interchange format supported by some e-book readers, as well as many Word processing applications, including MS Word and OpenOffice. This is the preferred format for many users who create their own content for Sony Reader.
• SGF is a native format for Sigil, a direct editor for ePUB. (No longer used)
• STK is STAReBOOK's own format.
• TCR - e-book for EPOC.
• TeBR is a custom tiny ebook format from Fictionwise.
• TR - Tome Raider format. Their latest format is called TR3. Tome Raider is an e-book format that supports very large books such as reference books, encyclopedias and dictionaries.
• VBK is a graphically-enabled e-book format from VitalSource. This format is commonly used in textbooks.
• XEB is a format used by Apbi e-books primarily in Chinese.
• XDXF is an XML-based dictionary exchange format.
• WOLF - Proprietary format used by HanLin eBook in its V2B, V3 and V8 e-books. The extension is usually .wol. Also used by JCNIP on their reader Dr.Yi.
• ZTXT is a format used by WeaselReader on Palm devices. Has the extension .pdb.
• ZNO - proprietary format electronic magazines Zinio subscriptions. These magazines include multimedia materials such as photographs and videos. There are rumors that the format is based on DJVU.

Perhaps we will end with exoticism at this point. Thank you for your attention!

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An e-book format is a file type that can be correctly recognized and reproduced by an e-book reader - a reader or reader. Today, online stores and online libraries offer about 10 types of files for reading. Uninitiated users often choose “at random,” which does not always allow them to download a book to their reader in the optimal format for reading, and perhaps the file will not even open. On the other hand, when buying a reader, readers do not always know how to choose a reader based on the type of e-book formats supported.

For authors Knowing which e-book formats are most popular is also important. After all, currently electronic devices for reading are quickly replacing paper publications. Also on release electronic version For your paper book, you need to be sure that the e-book will be accepted by all the most popular online stores and that most readers will be able to read the book in the proposed format without errors.

Thus, it is important for the reader to know which e-reader to buy or what type of book is best to download to your e-reader. And it is important for the author to know in what format to publish his e-book. Our article will help both the author and the reader who is not yet experienced in this matter make a choice.

1. The first thing to note is that there are only two eBook formats that exist for creating professional programs, and also developed strict standards and independent systems for checking their quality: PDF and EPUB.
2. The PDF format is used to receive a print-on-demand service - when one copy is printed to the person who ordered the book.
3. All other popular book formats are in practice created by converting from EPUB.
4. Some publishers and freelancers offer to make any format very cheaply, by simply saving it from the Word editor, but you should understand that most online stores may reject this format and not all readers will allow comfortable reading. On some readers, a jumble of incomprehensible symbols may be displayed.

When choosing a format for his e-book, the author can proceed from the platform on which his work will be distributed:

• if you want to get into Litres and Ozone, you need PDF, EPUB and FB2 versions;
• to get into the iTunes store for Apple tablets and phones - iPhone and iPad - you need the EPUB type, this is the type that is supported by the iBooks reader on all Apple devices;
• EPUB is relevant for Barnes & Noble and Amazon.com stores - from it Amazon.com will automatically create MOBI and AZW for Kindle readers;
• For Google Play you can use PDF or EPUB.

If you want to create a scientific work for readers that contains formulas, tables, graphs, then the best format is only PDF. You can also make an EPUB, but the complexity of such work is quite high. In addition, as the page size increases, formulas and tables may take on a form that makes them difficult to understand.

Basic e-book formats

Modern bibliophiles, thanks to special devices for reading electronic books - readers or readers - have an excellent opportunity to carry with them thousands of works that can be read on the road, on vacation or during a lunch break.

We offer a brief overview of the main existing e-book formats.

FB2 (FictionBook)

The most common format in Russia.
Advantages:

• The content of the book on readers is structured (chapters, contents, cover, etc.).
• The user can sort files by author, genre, title and other tags contained in the source file.
• The file is lightweight and can be zipped.
• The file can be easily converted to other formats.
• Russian text has hyphens.

Flaws:

• Not intended for books with illustrations: images inserted into the text cannot be seen on many readers.
• This format was created by Russian developers and is not intended for use abroad, since it is not supported by Apple, Google, Barnes & Noble and Amazon.

EPUB (Electronic PUBlication)

Perhaps the most commonly used electronic file type, supported by readers from all well-known manufacturers: Barnes & Noble, Sony, Pocketbook, Kindle, Onyx, Wexler, iBooks application for Apple devices, iPhone and iPad.
The layout structure of such a document is similar to an archived HTML page with texts, graphics, built-in fonts, etc.

MOBI

Initially it was supported only by Kindle readers, which were quite popular in Russia.

KF8 (Kindle Format 8)

The new format from Amazon is an improved version of MOBI.

PDF (Portable Document Format)

Peculiarities:

• files are heavy enough for inexpensive readers;
• in most cases the page corresponds to A4, while ordinary readers are A5 in size;
• it is possible to change only the scale (but not the font);
• Most likely, the page on the reader can only be read in fragments, unless it is an A6 page format version or you have a reader with a 9-inch screen.

DJVU

Designed as a storage for document scans. The functional features are completely similar to PDF.

LRF

LRF, the old format for Sony ereaders, converts very poorly to other file types.

AZW

Applies to Amazon.com for Kindle readers only. This format is used for copy protection.

TXT

Advantages:

• makes it possible to copy text of any format from another source;
• supported by almost all readers;
• the file weighs very little.

Meanwhile, this format does not provide for the presence of formatting and alignment elements, which makes it not the most the best option for a full-fledged virtual book.

RTF (Rich Text Format)

This is not the most convenient file type for reading due to the bulkiness of the file, and therefore the low speed of the reader’s work with it.

DOC (DOCX)

Word editor format. Few e-reading devices provide convenient reading of a full-fledged e-book in this format.

Which e-book format should the author and reader choose?

The traditional “book formats” supported by most readers are EPUB and FB2. It is important for the reader to pay attention to this when purchasing a reader. Of course, the more formats a reader can read, the better. Be sure to buy a backlit reader - you can read comfortably in rooms with insufficient lighting.

The author, when releasing his work, also needs to take into account precisely these EPUB and FB2 formats, in addition, of course, a PDF file is needed - without it it is impossible to correctly print a book for lovers of reading on paper.

Electronic book PocketBook 626 Plus (red)

INSPIRED BY PASSION presents a limited edition version of the flagship reader PocketBook 626 Plus in an exclusive ruby ​​color. The new PocketBook 626 Plus Ruby Red is a synergy of perfect style and high comfort of electronic reading. The design concept, awarded with the international Red Dot Design Award, is now realized in a noble ruby ​​color, which embodies the classics, and at the same time corresponds to the latest fashion trends. Thanks to a special paint spraying technology, even after many years of use, the reader will retain the same deep velvet-ruby color. COMFORTABLE READING In terms of optical properties, E-Ink Carta screens are even closer to regular paper, thanks to a lighter background and contrasting black ink color. The technology provides an increase in contrast by 50% to 15:1 and reflectivity by 20% compared to its predecessors. These metrics help make displayed text and graphics even clearer. With the new displays, you can confidently read the smallest text and comfortably study even the most complex charts and graphs. The PocketBook 626 Plus reader is also equipped LED backlight, which provides the user with a feeling of maximum reading comfort in any lighting OPENNESS AND COMMUNICATION Thanks to the built-in Wi-Fi module the device supports everything online services for convenient delivery of content to the reader, such as Dropbox, Books by email and PocketBook Sync.

What formats do e-books support?

The pre-installed ReadRate app gives you a unique opportunity to share your book preferences and receive book recommendations from friends. CAPACITY AND MULTIFORMAT Four gigabytes of built-in memory and a slot for microSD memory cards (up to 32 GB) allow you to always have several thousand books at hand, and a powerful 1 GHz processor ensures smooth page turning and fast response of any application. The reader gives maximum freedom when choosing content, because it supports 19 book formats without conversion, and reproduces 4 graphic formats - JPEG, BMP, PNG, TIFF.

Electronic book PocketBook 615 dark brown

Comfortable reading non-stop
The new PocketBook 615 is a simple and easy-to-use device, with two important advantages - LED backlighting and a 6-inch E Ink Pearl screen with HD resolution (1024 x 758 pixels). These characteristics guarantee high image clarity and allow you to enjoy reading in any lighting conditions.

Formats for e-books: which ones are available?

All characteristics of PocketBook 615 are focused on the main goal - to provide comfortable reading, non-stop.

Simplicity and freedom
PocketBook 615 is laconic in everything - a convenient size, an ergonomic joystick for easy control, the ability to make bookmarks and notes in the margins. The device reproduces 18 text and 4 graphic formats without conversion, and pre-installed dictionaries are indispensable when reading foreign literature. The reader has 8 GB of internal memory, expandable up to 32 GB. This will allow you to collect a whole electronic library, which will provide years of exciting reading. PocketBook 615 is equipped with a powerful processor with a clock frequency of 1 GHz, and also has 256 MB of RAM, which will provide high speed page turning and fast application response.

Mobile, universal
The weight of the device is only 180 grams, and makes it quite mobile and convenient for use both during leisure and on the go. The reader is made in a classic dark brown color and will succinctly complement any style of the owner.

Welcome to PocketBook

Concerned about creating the best products, the company has brought together a number of business structures aimed at developing and service maintenance devices, development of unique software to them, as well as the creation of online platforms for convenient search for the best electronic content.

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What e-book formats are suitable for mobile phones?

Today there are 130 operating worldwide service centers PocketBook. Taking care of consumers, PocketBook provides an exclusive guarantee for all devices.

Carrying out its mission, the PocketBook company has launched three ambitious projects aimed at popularizing reading: a branded electronic content store BookLand, a search and recommendation service ReadRate, as well as a unique application KidRead, created to engage children in reading, as well as to control and test a child’s literary knowledge .

Almost all people who ask me for advice on choosing a particular reading device also ask questions about e-book formats - which is better and why. In this article I will answer these questions in great detail; I will consider both formats for reading fiction and formats for reading technical, scientific and educational literature.

Fiction

There are the following formats in which you can find fiction on the Internet: TXT, RTF, FB2, EPUB, MOBI, DOC, PDF, DJVU. I’ll say right away that it’s better to buy/download books in EPUB, FB2 or MOBI. It is these formats that are most suitable for reading fiction.

PDF and DJVU formats are too heavy and inconvenient; Often the text in them is actually a picture, that is, you can only scale the entire page, but not the size of the font itself. On reading devices (readers), books in PDF and DJVU are sometimes not displayed very well: the letters can be very small; The text is inconvenient to read.

The TXT and RTF formats are free of such disadvantages, but have other disadvantages: the text in TXT cannot be formatted at all, that is, headings, epigraphs, quotes will not stand out in any way; Moreover, TXT does not support covers, pictures and tables. This is a very poor, simple format. In RTF, of course, formatting options are richer, but there are also drawbacks: the automatically collected table of contents and footnotes are not supported. In addition, RTF files are usually quite large, and some reading devices do not always display them correctly.

The DOC format (and its variant DOCX) is great for complex documents, but is not suitable for fiction: it is too bulky and complex; DOC documents often display differently on different devices.

A completely different matter is the three specialized formats tailored specifically for fiction: EPUB, MOBI, FB2 (and its variant FB2.ZIP). These formats are based on the so-called “floating layout”, which allows you to change the size, font typeface, line spacing and margin width. Moreover, these formats support pictures, tables, an auto-assembled table of contents, footnotes and many other things. Reading books in FB2/FB2.ZIP, EPUB, MOBI is really pleasant and comfortable.

Of course, there are certain differences between these formats, but for beginners they are not significant. Although it is worth noting that on the Russian-language Internet the most books are in FB2, in EPUB there are already fewer, and in MOBI there are even fewer.

The final choice of format also depends on your reading device: it may work better with some formats, and worse with others. This is where you need to experiment. In addition, there are devices that support only one of the specified three formats. For example, the Amazon Kindle only reads MOBI, and the B&N Nook only reads EPUB.

You can read more about the FB2 format, about EPUB-, about MOBI-.

Scientific, technical and educational literature

Here everything is more complicated: this kind of literature is usually distributed in PDF, DJVU, DOC (DOCX) formats, each of which, as I noted earlier, has certain disadvantages. Sometimes it is still complicated by the fact that some books are available in only one format, and sometimes only in one version.

The DOC format, in principle, is not so bad - compared to PDF/DJVU. Reading books on a computer is more or less comfortable. The situation is worse with reading devices: some readers display it almost as bare text, excluding a number of illustrations, tables, formulas, etc. Others display it more like a picture: design elements are shown, but you cannot change the font size and typeface, which sometimes turns into a disaster on a small screen.

PDF. There are three variants of this format: text, graphic (“picture”) and graphic (“picture”) with an OCR layer. The first option is the most preferable: it can contain all the formatting elements, and the text remains scalable. In the case of graphic PDF, the text is just a picture that can only be enlarged in its entirety; The font size cannot be changed. Graphical PDFs are therefore very difficult to read on devices with small screens.

Sometimes an OCR layer is applied to graphic PDF pages using OCR software. In a PDF book with an OCR layer, you can search and use a dictionary. This is a good option. But, again, not all reading devices “see” this OCR layer. And it does not allow you to increase the font size. Therefore, the OCR layer often turns out to be useless.

The DJVU format generally resembles a graphical PDF: it is usually just a set of scans or photographs of a paper book. The quality of these scans/photos can be absolutely terrible, or it can be quite decent. Sometimes an OCR layer is applied to scans/photos using a text recognition program. In the DJVU book with an OCR layer, you can search and use a dictionary. This is a good option. But, again, not all reading devices “see” this OCR layer, and it will not allow you to increase the font size. Therefore, the OCR layer is often practically useless.

To summarize: the most preferred format for reading scientific/technical/educational literature is text PDF, I would put DOC in second place, and graphic PDF and DJVU with an OCR layer in third place. The last place is occupied by image PDFs and DJVUs without an OCR layer.

Documents, spreadsheets and presentations

Most of the documents, tables and presentations are distributed in MS Office formats: DOC/DOCX, XLS/XLSX, PPT/PPTX. These formats are very functional, but, unfortunately, quite “cumbersome” and very “closed” (in other words, it is quite difficult for third-party developers to create a program for reading files in these formats). Therefore, some devices do not support them. We have to convert documents to PDF.

Converting a document/table/presentation to PDF is very easy: any decent text/spreadsheet editor can do this. In addition, you can use some converter: you can find a list of them.

If the document is simple, and the main thing in it is text, then it is better to convert it not to PDF, but to FB2 - this way it will be read on the reader with greater comfort. See the list of relevant converters.

Enjoy reading!

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