Apps similar to Xreader include SumatraPDF, which is free and open source. Other options are Okular, Foxit PDF Reader, KOReader and Koodo Reader. PDF Readers like Xreader are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, Android and iPhone.
Read, annotate, and highlight PDFs, fill interactive forms with saved input, underline or strike through text, manage bookmarks, sync files from cloud services, and share documents. Compatible with Preview and Adobe Acrobat annotations, supporting extensive iOS features.
Ukraine
Document Viewer is a highly customizable document viewer for Android, fork of the last GPL version of EBookDroid .
Germany
EU
A document viewer for the GNOME desktop. You can view, search or annotate documents in many different formats.
United States
Comprehensive solution for editing, signing, form filling, OCR scanning, commenting, converting, and redacting PDFs, with AI-driven analysis and content extraction, data export to spreadsheets, text-to-speech, seamless use across desktop and mobile, and batch processing.
Taiwan
EPUBReader is a Firefox and Chrome addon which lets you read ePub-files just in the browser. You don't need to install additional software!
GermanyEU
Reads EPUB, MOBI, FB2, and PDF files, manages digital libraries, tracks reading progress, allows notes, highlights, bookmarks, text translation, online search, night mode, full-screen, customizable layouts, text-to-speech, and displays ebook metadata.
CyprusEU
The top AEC PDF app to markup and manage drawings and documents. Ideal for replacing pen and paper, avoid printing documents again by using our intuitive feature set that makes marking up a PDF easy. Open or create a new PDF, markup using our extensive array of tools, then save...
Australia
qpdfview is a Qt-based tabbed document viewer using the Poppler library for PDF rendering and CUPS for printing. Support for the DjVu and PostScript formats can be added via plugins.
GermanyEU
Atril is a simple multi-page document viewer. It can display and print PostScript (PS), Encapsulated PostScript (EPS), DJVU, DVI, XPS and Portable Document Format (PDF) files. When supported by the document, it also allows searching for text, copying text to the clipboard...
Universal Viewer is an advanced file viewer for wide range of formats. Supported file formats are:
Russia
Zathura is a highly customizable and functional document viewer. It provides a minimalistic and space saving interface as well as an easy usage that mainly focuses on keyboard interaction.
GermanyEU
