PDF Compressor - Free & Offline
Compress PDF files completely offline in your browser
Drop your PDF file here
or click to select a PDF file to compress
Compressing PDF...
Analyzing PDF structure...
Compression Settings
Original PDF Info
Loading PDF information...
Compression Results
Original PDF
Loading...
Compressed PDF
Ready for download
How Our Offline PDF Compressor Works
Upload PDF
Select your PDF file. It stays on your device - never uploaded to our servers.
Compress Offline
PDF-lib extracts and compresses embedded images while preserving text and layout.
Download Result
Get your compressed PDF with smaller file size and preserved quality.
Why Offline PDF Compression Is Safer
No Upload Required
Your PDF stays on your device. There is no server to leak or retain files.
Privacy First
Offline processing keeps sensitive documents private and compliant.
Faster Results
Skip upload queues and compress PDFs instantly in your browser.
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Frequently Asked Questions
How much can I reduce my PDF size?
Compression depends on your PDF content. Image-heavy PDFs can be reduced by 50-80%, while text-only PDFs may see smaller reductions.
Will compression affect PDF quality?
You can choose compression levels. High compression reduces file size more but may reduce image quality slightly.
Are text and fonts preserved?
Yes. Text content and fonts are preserved. Only embedded images are compressed locally in your browser to reduce file size.
Is this PDF compressor really offline?
Yes. All compression happens on your device with no upload, so your documents stay private.