π PDF Tools
PDF Compressor
Rewrite PDF structure to reduce some unoptimized files.
Rewrite a PDF with object streams entirely in your browser. This does not resample images, so some PDFs may not become smaller.
Tool area
How to use
- Choose a PDF under 40 MB.
- Compress and wait for the rewrite.
- Compare the result before downloading.
Use cases
- Optimize PDFs created by older tools.
- Reduce some structural overhead.
FAQ
- Is the PDF uploaded?
- All input and files are processed only in this browser tab and are not uploaded to a server.
- Are encrypted PDFs supported?
- PDFs that require passwords or restrict modification are not supported.
- Why did the file not become smaller?
- The tool does not lower image resolution, so optimized or image-heavy PDFs may not shrink.
Privacy & local processing
π This tool runs entirely in your browser. No data is uploaded to any server.
All input and files are processed only in this browser tab and are not uploaded to a server.
Trust & usage note
This tool runs mainly in your browser. Your input is not actively uploaded to a server. Avoid entering highly sensitive data. Results are for reference only.
Disclaimer
This tool performs structural PDF optimization only; it does not resample images or guarantee a compression ratio.
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