Secure PDF: Offline Toolkit

Your documents never leave your phone. Turn on airplane mode and every tool still works. That is not a setting you switch on, it is how the app is built. There is no server to upload to, no account to create, and nothing to sign in with. WHAT IT DOES Read PDFs with a proper reader — continuous scrolling, pinch to zoom, jump to any page. Scan paper with the camera. Edges are found automatically and the result is a clean PDF, not a photograph of a page. Compress to get under an upload limit. Scanned documents typically shrink by 65 to 85 percent. Text-only PDFs barely move, and no tool anywhere does better on those. Merge, split, extract pages, reorder, rotate, crop. Photos to PDF and PDF to photos. Sign with your finger. Black out anything you do not want seen — the text is removed from the file, not covered with a rectangle you can drag away. Add text to a form that has no form fields. Add a watermark, page numbers, or a header and footer. Make a scan searchable with on-device OCR in English or Hindi. Set a password with AES encryption, or remove one you already know. Check a document for hidden personal data before you send it. Compare two versions. Repair a file that will not open. WHY IT IS DIFFERENT Most PDF apps upload your file to a server, run the work there, and send it back. Your bank statement, your contract, your medical letter — all of it, on somebody else's computer. That is how they afford to be free. This one does the work on your phone. The trade-off is honest: very large files are limited by your phone's memory rather than by a data centre. In exchange, your documents stay yours. The app asks for no storage permission. It sees the one file you hand it and nothing else on your phone. There is no advertising identifier. Compare the Data safety section on this page with any other PDF app you are considering. QUALITY OF THE OUTPUT Merging, splitting, extracting and reordering are lossless. Pages are copied byte-for-byte rather than re-drawn, so text stays selectable, links keep working, and screen readers keep working. Many apps render each page to an image and rebuild the file, which triples the size and quietly destroys all three. Photos keep their original JPEG data wherever possible instead of being re-encoded, and their orientation is read properly rather than guessed. FREE, AND NOT A TRIAL Every tool is free. Nothing is held back for a paid tier, there is no watermark on anything the app produces, and no feature stops working after a number of uses. There is a tip jar in Settings if you want to support the work. It changes nothing about the app. WHAT IT DOES NOT DO It will not open a file you do not have the password for. It cannot recover or bypass a password. Very large scanned documents are limited by available memory. If a file is too big to handle, the app says so rather than failing silently. OCR covers English and Hindi. Other scripts are not supported yet.

Every PDF tool, fully offline. No ads, no account, nothing leaves your phone. Compress, scan, sign and redact PDFs. Entirely on your device, always free. PDF tools that never upload your files. No ads, no account, no tracking.