PDF One

PDF One — the complete PDF toolkit on your phone.
Open, view, edit and create PDFs anywhere — then do the jobs other apps make you pay for, entirely on your device. No cloud uploads, no sign-in, no waiting.
WHAT YOU CAN DO
• View & read – fast, smooth PDF rendering with thumbnails, search and jump-to-page.
• Merge & split – combine PDFs or pull out just the pages you need.
• Edit pages – reorder, rotate, delete and extract pages in seconds.
• Annotate – draw, highlight, stamp and add text (pinch to resize) right on the page.
• Scan & OCR – turn camera shots into real, text-searchable PDFs with on-device OCR — works offline.
• Fill & sign – fill forms and export the form data.
• Protect – add or remove passwords and encryption.
• Compress – shrink heavy PDFs to shareable sizes.
• Convert – images to PDF and PDF pages to images.
• Watermark – brand your documents.
• Share & print – send results anywhere or print straight from the app.
WHY PDF ONE
• On-device first: your documents never leave your phone unless you share them.
• Clean, modern design that gets out of your way.
• Built for real work: large files, long documents, no fuss.
• Free with ad support — no subscriptions.
PERMISSIONS
PDF One asks only for what it needs: storage access so it can open and save PDFs from any folder, camera for scanning, and internet for ads/support. See our privacy policy for details.
One app for every PDF job. Download PDF One today.

Recent changes:
everything is new: fast PDF viewer, merge/split/edit pages, annotate with pinch-to-resize text, scan with offline OCR, fill & sign, password-protect, compress, convert, watermark, share & print. Please report crashes, layout glitches and slowness, especially on older phones!