Offline PDF Merge & Compress

Offline PDF Merge & Compress — PDF, video and audio tools that never upload your file.

A common way to merge two PDFs is to upload them to a website — wrong for a contract, a payslip or a medical report. Every tool in this app runs on the phone, so it works with no signal, and unlike a PDF-only toolbox it also trims video and lifts the sound out of it.

Compression loses quality and the result cannot be restored to the original — keep your source file.

WHAT IT DOES
• PDF: merge, split by page, compress, and stamp text on the pages you choose
• Sign: draw your signature and place it on the pages you choose (a picture, not an e-signature)
• Images to PDF: JPG and PNG become A4 pages; JPEG photos are not re-compressed
• Password: lock a PDF with AES-256, or remove a password you know (Android 15, or 12 to 14 with Google Play system updates)
• Video: trim between two times with no re-encoding, or shrink the bitrate; audio: pull the sound track out of a video into a separate m4a file
• Each tool says what it will do before it does it; a queue runs long jobs while you do something else

WHAT IT DOES NOT DO
• It does not upload files, read text from scans (no OCR), apply a certified electronic signature or recover a forgotten password.
• No account and no sign-up: the only passwords are the ones you put on your own PDFs.
• No personal data goes to the developer. Google's ad SDK collects IP, interactions, diagnostics and device IDs.
• Ads pay for the free tier; no interstitial on launch. Paid members see no ads and no ad request is sent.

PRIVACY
Permissions requested: network state, internet, notifications, letting the ads library tell Wi-Fi from mobile data, restarting tasks after a reboot, vibration, keeping the phone awake while a task runs, buying a paid membership through Google Play and ads in the free tier.

LIMITS — honestly
• Merging, splitting, compressing, stamping, signing and password-protecting redraw each page as an image, so text in the result can no longer be selected or searched; removing a password copies the document as it is.
• The job history and settings have no cloud backup; export one from Settings before you change phones.

This app works only on the files you pick and does not copy them into its own storage; a password or signature you give a job stays in memory only until that job has run.

Offline PDF Merge & Compress is an independent app, not affiliated with or endorsed by any institution, brand or company it mentions.

Recent changes:
• Your membership is now checked with Google Play every time you open the app, so ad-free use starts or ends without opening Settings.
• Membership plans that are not on sale in Google Play are no longer offered.