Offline PDF Merge & Compress

PDF, video and audio tools that never upload your file.

com.ibrahimtxy.dosyakutusu · Tools

A common way to merge two PDFs is to upload them to a website. That is fine for a holiday photo and wrong for a contract, a payslip or a medical report. Every file tool in this app runs on the phone, which is also why it works with no signal. And unlike a PDF-only toolbox, the same app 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. Every file tool runs on the device: no file is uploaded anywhere.

Get it on Google Play

What it does

PDF: merge PDFs and pictures in the order you set, with the pages you pick from each; split by page or into several files; compress after seeing the size each setting gives
Pages: rotate, delete, reorder, crop, insert pages or pictures, add page numbers or a text or picture watermark, flatten, put 2 or 4 pages on a sheet or make a booklet
Scans: combine front and back sides scanned separately, remove blank pages, whiten yellowed scans
Sign: draw your signature with your finger and place it on the pages you choose; it is saved on this phone only if you ask (a picture, not an e-signature)
Edit: change or delete a line of text and replace or remove a picture; the old text is really removed, not covered, and the new text can be searched
Mark up: highlight, underline or strike out text, draw with a pen and add text notes as real PDF annotations; fill in PDF form fields (Android 15, or 12 to 14 with Google Play system updates)
Convert: pictures to PDF on A4, Letter or picture size; typed text to PDF with real, selectable text; PDF pages to JPG or PNG; a web page to PDF; PDF to Word, Excel or PowerPoint; Word (.docx, or the text and tables of an older .doc) to PDF
Password: lock a PDF with AES-256 and choose what it allows (printing, copying, editing) with a separate owner password, or remove a password you know (Android 15, or 12 to 14 with Google Play system updates)
Open and print PDFs in the app, take files shared from other apps, search the tools and star your favourites
Read a PDF aloud with your phone's own voices that work without a connection
Remove comments and markup (links and form fields stay) or extract the pictures embedded in a PDF
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 to the file before it does it; a queue runs long jobs while you do something else
Your files and password are not uploaded or stored anywhere

How you set it up

Pick a tool and then the file: one PDF, several PDFs or pictures to merge, or a text; other apps can also share files straight to it. Before anything changes, the app says what will happen to the file. Press Run, choose where the result goes, and a notification tells you when it is done. Apart from Web page to PDF, which loads the page you type, nothing is fetched from the internet, so the file tools work in aeroplane mode, and light and dark themes and large text are respected.

Who it is for

Anyone who needs a file tool for documents they would not upload to a website.

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.
The developer collects no personal data and adds no analytics or crash reporting. In the free version the Google Mobile Ads SDK collects IP address, app interactions, diagnostics and device IDs (see Data safety).
The free tier shows Google AdMob ads: a bottom banner, rewarded ads you start yourself and an “Ad”-labelled card inside the list; no full-screen ads between pages or on launch. Paid members see no ads and no ad request is made.

Version history

0.13.0 (2026-10-27)

Edit a PDF: change or delete a line of text (the old text is really removed) and replace or remove images.
Mark up: highlight, underline, strike out, draw and add notes as real PDF annotations; fill in PDF forms.
Convert PDF to Word, Excel or PowerPoint, and Word (.docx or .doc) to PDF; read a PDF aloud offline.
Remove comments and markup; extract embedded images.

0.12.0 (2026-10-22)

New page tools: rotate, delete, reorder, crop, insert, page numbers, watermark, flatten, 2/4 per sheet and booklet, remove blank pages, whiten scans.
Merge PDFs and pictures in your order with chosen pages; split into several files; text and web page to PDF; PDF to JPG/PNG.
Password permissions and a separate owner password; viewer, printing, share menu, tool search and stars.
Optional: save your signature, keep links to recent outputs.

0.11.0 (2026-10-15)

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.

0.10.0 (2026-10-09)

A component used by the ad library (protobuf-javalite) was updated to 3.25.9, which includes a security fix.

0.9.0 (2026-10-02)

Fix: in History, a job that makes the file bigger (e.g. adding a password) now shows “Size increase” instead of “Space saved 0 B”.
No space saved is shown when the output size could not be measured.

0.8.0 (2026-10-02)

New: sign a PDF. Draw your signature with your finger and place it on the pages you choose (a picture, not an e-signature).
New: images to PDF. JPG and PNG pictures become A4 pages; JPEG photos are not re-compressed.
New: lock a PDF with a password (AES-256; pages are saved as images), or remove a password you know (Android 15, or 12 to 14 with Google Play system updates).
The password and signature you give a job stay in memory only until it has run; nothing is uploaded.

0.7.0 (2026-09-27)

Results of your actions (saved, added, limit reached) now always appear above the ad strip.
A late-loading ad card no longer shifts the screen (no accidental taps).
Updated the ads library.

0.6.0 (2026-09-24)

Changing the language no longer sends you back to the first tab.
With a paid membership, the ad-consent check and ads SDK no longer start at launch.

0.5.0 (2026-09-23)

Fixed a crash that could happen when the ad component ran short of memory: no new full-screen ad is loaded while memory is low.

0.4.0 (2026-09-19)

Rebuilt on the latest Android version and libraries, including a newer version of a component Google Play flagged as outdated.
Stability improvements.

Permissions

Permission	Why
`ACCESS_NETWORK_STATE`	So the ad library can see the connection state. Your entries do not use the network.
`INTERNET`	For ads ONLY. Your entries never leave the device and the app has no server of its own.
`POST_NOTIFICATIONS`	To remind you about the dates and reminders you set yourself.
`READ_BASIC_PHONE_STATE`	So the ads library can tell Wi-Fi from mobile data. It grants no access to your phone number, IMEI or call log; the app does not declare it, the ads library adds it.
`RECEIVE_BOOT_COMPLETED`	So your reminders keep working after the phone restarts.
`VIBRATE`	To vibrate when a notification arrives.
`WAKE_LOCK`	So the phone does not fall asleep in the middle of a check. The app does not ask for this itself; the background work library (Android Jetpack WorkManager) adds it.
`BILLING`	So you can buy a paid membership through Google Play. The app does not declare this permission itself; the Google Play Billing library adds it. Your payment details (card, address, invoice) never reach the app and are never seen or stored by it — Google Play takes the payment. All the app learns is whether your membership is active.
`AD_ID`	Ads in the free tier are served by Google AdMob, which may read the device advertising ID (AAID). The app does not declare this permission itself; the ads library adds it. Paid members make no ad request at all. You can reset or delete the ID in Settings › Google › Ads.

Source

This app reads no outside data except the web page you ask Web page to PDF to load. It works on the files you pick, on your phone, and does not copy them into its own storage; a password or text you type for a job stays in memory only until that job has run, and your signature is kept only if you save it. No file is sent to any server.

Offline PDF Merge & Compress is an independent app. It is not affiliated with, endorsed by, or connected to any institution, authority, brand or company mentioned in it.