Evince vs Universal File Opener

Evince is a free document viewer for Linux desktop users. It opens PDF, PostScript, DjVu, DVI, XPS, OXPS, and Comic Book Archive files, and can display supported documents as full-screen presentations. Interactive forms can be completed, including text fields and scrollable list boxes. For PDFs, Evince can add notes and text highlights; these annotations are limited to PDF files. SyncTeX synchronizes a TeX source file with its resulting PDF. Printing is documented for DVI, DjVu, PDF, PostScript, and TIFF. When opening a password-protected PDF, Evince prompts for its password. It is not a file editor. Some Linux distributions may need the relevant backend package to support every listed format. The project wiki recommends obtaining Evince through the user's Linux distribution and points to packages or source for other download options. The help site includes user documentation and directions for reporting application bugs.

Universal File Opener is an offline viewer and editor for supported files on Android and Windows. Its tools cover PDFs, Office documents, spreadsheets, presentations, images, archives, text, code, data, audio, and video, with available capabilities varying by platform and format. The listing includes 214 formats, archive, Office, and code previews, and in-file search. Reading supported files is free without a file-count limit, expiry, or watermark, though individual formats have size and compatibility limits. Files are processed on the device: Android does not request INTERNET permission, and the Windows app makes no network connections of its own. The apps have no advertising, app analytics, or Krauq account requirement. Android can read English text from scans using offline OCR. Files can be opened through Android sharing or file-picker features, or Windows dialogs and drag and drop; cloud providers handle their own downloads and syncing. Android Pro costs $1.99 a month or $9.99 a year. The listed lifetime option costs $5,029.99, paid once.