PDF Compressor & Size Reducer

Need to send a PDF that's too big to email? Compress PDF files and reduce PDF size right on your phone. Your documents never leave the device - no sign-up, no upload, no server.

Pick a file and the app compresses it five different ways before you choose. You see the real size of every version, not an estimate. Compare them, preview the result, keep the one you want.

🔒 PRIVATE BY DESIGN

Your PDFs are opened, compressed and saved entirely on this device. Nothing about a document - not the file, its contents, or even its name - is ever uploaded anywhere.

- No login, no account, no sign-up

- No cloud upload, ever

- No storage permission

- Every file processed locally on your device

- Compress PDF offline, even in airplane mode

Ads are the only thing the app uses the internet for. Switch it off and every feature still works - the ads simply do not appear.

📄 FIVE COMPRESSION LEVELS

Lossless - repacks the file without touching a single pixel. No DPI change, no image resizing, no quality loss.

Balanced - recommended for most documents. Photos are reduced only where the page cannot show the extra detail anyway.

Strong - noticeably smaller, still sharp on screen.

Maximum - smallest practical size, good for slow connections.

Extreme - for sharing only, images get visibly softer.

Every level optimizes the PDF structure first - duplicate data merged, leftover objects removed, streams repacked. Each one is compressed for real before you pick, so the size shown is an actual file, not a prediction.

✏️ SHRINK PDF SIZE WITHOUT LOSING TEXT QUALITY

At every level, text stays real text. Pages are never turned into images, so your document stays selectable, searchable and sharp at any zoom.

The app is designed to preserve text, page layout, links, bookmarks, annotations and form fields wherever supported by the selected compression level. Results may vary depending on the PDF.

⚡ FOUR STEPS

1. Select your PDF

2. Compare the five PDF compression levels and pick one

3. Preview the result beside the original

4. Save or share your compressed PDF

📊 SEE WHAT YOU SAVED

For every level you get the original size, the compressed size, and the exact percentage saved - measured from a real file, not estimated.

👁️ BUILT-IN PDF VIEWER AND READER

Read PDFs without needing a separate PDF reader app. Smooth scrolling, pinch to zoom, page thumbnails, bookmarks, night mode for reading in the dark, and it remembers where you left off.

♾️ UNLIMITED AND 💯 ALWAYS FREE

No subscription. No account. No trial. No watermark on your files. No daily cap, no file size limit, and no limit on how many PDFs you compress.

Ads keep the app free instead of a paid tier, so every feature is open to everyone.

🤝 HONEST ABOUT LIMITS

Password-protected PDFs are declined rather than opened. Compressing rewrites a file and the original protection cannot be restored, so handing back an unprotected copy would be the wrong outcome.

Some PDFs are already efficiently built. When that happens the app tells you and returns your original untouched, instead of a rewritten file the same size.

📱 GOOD FOR

- Shrinking a PDF that is too large to email

- Reducing PDF file size for job applications, forms and government portals with upload limits

- Compressing scanned PDF documents and photo-heavy brochures

- Optimizing large documents to free up storage

- Making a PDF smaller before sharing it anywhere

- Reading and managing PDF files offline

Your original file is only ever read, never modified. The app uses Android's system file picker, so it only sees the one document you hand it. Working copies stay in the private cache and are cleared automatically.

Whether you need a PDF compressor, a PDF size reducer, a PDF optimizer, a document compressor, or just a quick way to shrink a PDF and make it smaller before sending it, this does the job on your device and keeps your files to yourself.

PDF Compressor App Free - Unlimited compression. Always free. Private by design.