Your PDFs, beautifully simple.
PDFMamba brings the best of professional PDF readers into a calm, uncluttered app. Read, mark up, fill and sign — without the clutter.
Everything you need. Nothing you don't.
Distraction-free reading
Page thumbnails, smooth zoom and fit-to-width, so the document comes first.
Highlight & annotate
Highlights, sticky notes and freehand pen in your colours, saved into a copy of the file.
Fill & sign
Type into forms and draw or type your signature, then place it anywhere.
Instant search
Find any word across the whole document and jump straight to it.
Sync with Google
Sign in with Google to keep recent files, bookmarks and stats across devices.
Light & dark
A warm paper look by day, a gentle dark mode at night.
Private by design
Documents never leave your device.
Light and fast
Opens large files quickly, even on modest laptops.
Questions
Is PDFMamba free?
Yes, PDFMamba is free to download from the Microsoft Store.
Are my PDFs uploaded anywhere?
No. Your PDF files stay on your computer. Only your reading list, bookmarks, stats and preferences sync when you sign in.
Which Windows versions are supported?
PDFMamba runs on Windows 10 and Windows 11 (64-bit).
Do I need an account?
No. You can read without signing in. Signing in with Google simply keeps your library in sync.
Ready for calmer reading?
Get PDFMamba free from the Microsoft Store.