PDF Compress
Reduce PDF file size with three compression levels — low, medium, high.
How it works
Upload a PDF, choose compression level, and download the smaller file. Works best on image-heavy PDFs. Text-only PDFs may not reduce much. Everything runs in your browser — no files are uploaded to any server.
Reduce PDF file size without losing quality
PDF Compress is a free online tool to reduce PDF file size. Choose from three compression levels — low, medium or high quality — and download the compressed PDF instantly. Works best on image-heavy PDFs. Everything runs in your browser — no files are uploaded to any server.
Multiple compression levels
Choose between low, medium and high compression to find the perfect balance between file size reduction and visual quality.
Optimize image-heavy documents
The compressor is especially effective for PDFs containing high-resolution images, scans or graphics.
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Frequently asked questions
Will compressing my PDF make it unreadable?
No. The tool optimizes the internal structure and compresses images while keeping text and vector graphics sharp.
Is it safe to compress confidential PDFs?
Yes. The compression algorithm runs locally in your browser, so your confidential documents never leave your device.