Reading e-books on a smartphone has turned from a rare activity into an everyday habit for millions of users. However, many are faced with the problem of choosing a convenient application and finding quality content. Cool Reader is one of the most popular and functional readers, which is ideal for these purposes due to its open source code and support for all major formats.
In this article we will look in detail at how not only to install and configure Cool Reader, but also where to legally and freely find books to read. You will learn about the intricacies of working with libraries, features of file compression, and ways to organize your digital collection. The process of downloading literature may seem confusing to a beginner, but following our steps, you will quickly master this science.
The main advantage of this approach is complete independence from paid subscriptions and restrictions of specific stores. You get full control over your files, their design and storage method. Let's move from theory to practice and set up your device for comfortable reading.
Installation and initial setup of Cool Reader
The first step is to install the application itself. Although Cool Reader is available on Google Play, often a more recent version with improved codec support is in the repository F-Droid or on the developer's official website. After downloading the installation file .apk, allow installation from unknown sources in the security settings of your smartphone.
When you first launch the application, you will be prompted to select an interface language and theme. To reduce eye strain in the evening, getting your color scheme right is critical. Go to the menu Settings → View → Color scheme and select the "Sepia" or "Night" mode. This is not just a tribute to fashion, but a real concern for the health of your eyes during long reading.
Particular attention should be paid to setting fonts. Built-in system fonts often look too small or have poor readability on small screens. In the section Fonts you can upload your own files of formats .ttf or .otf. It is recommended to use serif fonts for fiction, as they make long texts easier to read.
⚠️ Attention: When downloading APK files from third-party resources, always check the digital signature of the developer to avoid installing modified malware.
After basic setup, you must indicate the folder in which your books will be stored. By default Cool Reader scans all internal memory, which can take a long time. It is better to create a separate directory, for example /Books/CoolReader, and specify the path in the app settings. This will speed up indexing and make the library more organized.
Use the "Auto-save position" function in the settings so that if you accidentally close the application, the book opens exactly where you left off.
Where to look for free books: a review of sources
The issue of searching for content is key for any e-book owner. The Internet is full of offers, but not all of them are safe and legal. There are several main types of resources where you can find literature for free. The first type is public domain digitization projects, such as Project Gutenberg or Russian-language analogues.
The second type of sources are large library portals and forums for reading enthusiasts. Here, users share files that are often pre-checked for formatting quality. The third option is telegram channels and specialized bots, which have become incredibly popular in recent years due to the ease of access from a mobile device.
- 📚 Classics libraries: Here you will find works for which the copyright has expired. This is the safest and most legal way to read.
- 🤖 Telegram bots: Allow you to search for books by title or author directly in the messenger and download files instantly.
- 🌐 Torrent trackers: Suitable for downloading large collections of works or rare technical works publications in one archive.
When searching for books, it is important to pay attention to the file format. For Cool Reader the best choice are formats FB2 and EPUB. They support flexible layout, table of contents and style saving. The format PDF is also supported, but on smartphone screens it often requires constant scaling, which reduces reading comfort.
File formats and conversion for better reading
Not all books are distributed in an easy-to-read format. You can often find outdated .txt files lacking formatting, or closed formats of specific stores. Cool Reader has built-in conversion capabilities, but for complex cases it is better to use third-party tools. Conversion allows you to fix “broken” encodings and add missing navigation elements.
If you downloaded the book in the format DOCX or RTF, it should be converted before loading into the reader. This can be done both through online services and using desktop apps like Calibre. The conversion process to FB2 takes a matter of seconds, but the result radically changes the experience of interacting with the text.
| Format | Support in Cool Reader | Features |
|---|---|---|
| FB2 | Full (Native) | Ideal preservation of styles, footnotes and illustrations |
| EPUB | Full | Industry standard, good text adaptability |
| Limited | Fixed layout, inconvenient on small screens screens | |
| TXT | Basic | Text only, no formatting or images |
When converting large files, you should consider the performance of your smartphone. Processing a book larger than 50 MB may take time and require a significant amount of RAM. In such cases, it is recommended to split the book into volumes or use lightweight converter settings.
Why is FB2 better than TXT?
The FB2 format stores information about the structure of the book: headings, paragraphs, bold and italics. In regular TXT, all this is lost, and the text turns into a solid “sheet” that is difficult to perceive. In addition, FB2 supports inserting covers and illustrations directly into the text.
Organizing a personal library and synchronization
When there are a lot of books, chaos arises. To avoid this, you need to properly organize the file structure. Cool Reader allows you to sort books by author, title or series, but this function depends on the correctness of the metadata inside the file. If the book was downloaded from an untrusted source, the Author or Genre fields may be empty.
To correct the situation, you can use the function of editing file properties directly in the application or third-party meta tag editors. Assigning the correct tags allows you to instantly find the book you need through search. It is also recommended to create separate folders for different genres or current reading projects.
Synchronizing your reading progress across multiple devices is a book lover's dream. Unfortunately, Cool Reader does not have a built-in cloud synchronization service out of the box. However, this problem can be solved by storing the folder with books in a cloud storage, for example Google Drive or Dropbox, and using the function of autosaving the reading position to a satellite file.
⚠️ Attention: When using cloud folders, make sure that the application has write rights to this directory, otherwise there will be no reading progress be saved after rebooting the device.
Regular backup of your library is a good rule of thumb. Losing your smartphone doesn't have to mean losing your collection collected over the years. It is enough to copy a folder with books to your computer or external drive once a month. It will take a little time, but it will save you from disappointment at a critical moment.
Correct organization of folders and meta tags saves up to 30% of the time spent searching for the right book in a large library.
Advanced interface settings and gestures
Reading convenience depends 90% on control ergonomics. The Cool Reader implemented a powerful gesture customization system that allows you to control pages without using on-screen buttons that clutter up the text. You can assign a tap on the left side of the screen to go back, and on the right to go forward, or use swipes to scroll.
For those who like to read on the move, the interface lock function is useful. It prevents you from accidentally switching pages when you press with your fingers while holding the device. You can activate it through the control menu or by assigning a long press to a specific area of the screen.
Settings → Controls → Gestures → Assign actionsAnother important option is setting margins and indents. On modern smartphones with camera cutouts or curved screen edges, text may overlap with system interface elements. In the section View → Fields you can manually set safe zones so that not a single letter is lost from view.
- 👆 Taps: Configure click zones for scrolling, calling up a menu or selecting text.
- 🔄 Swipes: Use vertical or horizontal scrolling depending on your habit.
- 🔊 Volume: Many users prefer to scroll through pages with physical volume buttons.
Solving common problems and optimizing work
Sometimes users are faced with the fact that books are not displayed in the list or the application is slow. Most often, the problem lies in a damaged book file or an overly complex font that the device cannot render quickly. Try opening the problematic book on another device or converting it to a simpler format.
If Cool Reader consuming too much battery, check the screen refresh rate settings. In some modes, swiping animations may load the processor. Disabling unnecessary effects and switching to static page refresh will significantly extend the battery life of your smartphone.
⚠️ Attention: The interface and names of menu items may vary slightly depending on the version of Android and the specific build of the application. Always check the latest documentation if you cannot find the option you need.
To speed up the application, it is recommended to clear the cache regularly. This can be done through the Android system settings in the "Applications" section. Clearing the cache will not delete your books, but will remove temporary cover thumbnail and indexing files that may have accumulated over a long period of use.
☑️ Diagnosing problems with a book
Frequently asked questions (FAQ)
Why doesn’t Cool Reader see downloaded books?
Most likely, the file is saved in a folder that the application does not scan by default. Go to the library settings and add the path to the download folder manually. Also check whether the file is hidden by system attributes.
Is it possible to read books with password-protected ZIP archives?
Native Cool Reader does not support entering a password to unpack archives on the fly. You need to first unpack the book into a separate folder using any file manager that supports working with archives.
How to enable night mode for only one book?
The style settings in Cool Reader are applied globally. However, you can create a separate settings profile for night reading and quickly switch between them through the style menu while reading.
Is it safe to download books from free sites?
The risk of contracting a virus through text files FB2 or EPUB is minimal, since it is not executable code. However, beware of files with the extension .exe or .apkthat may masquerade as books.
Does the application support audiobooks?
No, Cool Reader is intended exclusively for text files. To listen to audiobooks, it is recommended to use specialized players such as Smart Audiobook Player.