PDF Compressor
AI-powered PDF compression — smart modes, batch queue, quality reports & 100% private
How to use PDF Compressor
Drag & drop your file into PDF Compressor or click to browse. Nothing is uploaded to a server — everything stays on your device.
Pick your settings and click the action button. PDF Compressor processes everything instantly and locally in your browser.
Download your result instantly. Run PDF Compressor again as many times as you like — free forever, no watermark.
Frequently Asked Questions
How much can I compress a PDF?
Typically 40–85% reduction for image-heavy PDFs. AI Analyze shows compression potential before you compress.
Which compression mode should I use?
Smart AI picks automatically. Use Email Ready for attachments under 5MB, Web for fast loading, or Lossless for text-only PDFs.
Will quality be affected?
High Quality and Print modes preserve readability. Maximum mode targets smallest size. Quality score is shown in the report.
Can I compress multiple PDFs at once?
Yes — batch upload, ZIP import, queue manager, and ZIP download for batch results.
Are password-protected PDFs supported?
Yes. Enter the owner password on upload and compression runs locally in your browser.
Is it safe for confidential documents?
100% browser processing — files never leave your device. Auto-private, no server storage.
Can I compress to a specific file size?
Yes — enable Target file size and set KB (e.g. 200KB for Aadhaar UIDAI upload). AI binary-searches quality until the target is met.
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