PDFmark

Offline PDF reader & annotator. Highlight, draw, export. No ads or tracking.

PDFmark — Offline PDF Reader & Annotator
Read, annotate, and export your PDFs without ever connecting to the internet. PDFmark is built for privacy-first users who want a fast, reliable PDF tool that keeps your files entirely on your device.

Why PDFmark?
Unlike most PDF apps, PDFmark does not request internet permission. Your documents, annotations, and activity never leave your phone. No analytics, no ads, no cloud uploads, no tracking. Just a clean, focused PDF tool that works offline.

Annotate with Ease
Mark up your documents with highlight, underline, and freehand ink tools. Choose from a full palette of colors to organize your notes visually. Smooth Bézier curves make freehand drawing feel natural. Tap any annotation to select and delete it, or use the eraser tool for quick cleanup. Undo and redo let you work with confidence.

Read Comfortably
Navigate large documents effortlessly with smooth vertical scrolling, pinch-to-zoom, and a fast-scroll scrubber with page preview. Tap to enter immersive reading mode that hides toolbars for distraction-free reading. A floating page counter keeps you oriented. PDFmark handles documents of any size without slowing down.

Search and Navigate
Find what you need with full-text search across all pages. Browse the built-in table of contents to jump directly to chapters and sections. View all your annotations in a summary list and tap any entry to jump to that page.

Export Your Work
Save a flattened copy of your annotated PDF with all markups permanently applied. Choose your save location and track export progress. Export your annotation summary as a CSV file for use in spreadsheets or other tools.

Organize Your Library
Switch between grid and list views to browse your recent documents with thumbnail previews. Sort by date or name. PDFmark remembers where you left off in each document so you can pick up right where you stopped.

Secure Your Documents
Enable biometric lock to protect your PDFs with fingerprint or face authentication. PDFmark locks immediately when you leave the app, keeping your documents private.

Choose Your Theme
Switch between light mode, dark mode, or follow your system setting automatically for a comfortable reading experience day and night.

Pro Features — One-Time Purchase
PDFmark is free to use with core reading and annotation tools. Unlock Pro for a single payment of $0.99 to access unlimited annotations, PDF export, full-text search, table of contents, the complete color palette, CSV export, and biometric lock. No subscription. No recurring fees. Pay once, own it forever.

Permissions
PDFmark uses minimal permissions. File access happens only through the system file picker. Biometric authentication uses secure system APIs. No internet permission is requested or used.