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Fossify Documents vs MJ PDF: catalog facts
Fossify Documents	MJ PDF
Free Free and open source under the GPL 3.0, with no ads.	Free Free and open source under the GPL 3.0 licence.
Android	Android
Opens PDF, DOCX, Markdown, CSV and HTML in one app Edits text, Markdown and CSV files	Library view with recent files, folders and reading history Dark mode for the PDF content as well as the interface
Still in beta DOCX files are view-only	Android only A reader with annotations rather than a full PDF editor
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-only
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.