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PDF Compress
Reduce PDF file size by optimizing its internal structure directly in your browser.
Everything runs locally in your browser. Nothing is sent to the server.
Options
Compression runs in your browser. Large PDFs may take a moment.
Result
No file selected
Select a PDF file to see the compression result here.
What it does
This tool optimizes the internal structure of a PDF by enabling object stream compression. It works best on PDFs that were exported without optimization, such as those from older software or certain office tools.
How to use it
- Select a PDF file from your device.
- Optionally enable Remove metadata to strip document properties.
- Click Compress PDF and download the result.
Tips
- Results vary by PDF. Scanned image PDFs may see little or no reduction.
- Removing metadata can help slightly if the document has large properties.
- Nothing is uploaded to the server.
FAQ
Does this upload my PDF?
No. The compression runs entirely in your browser.
Why is the file size the same?
This tool optimizes the PDF structure. If the PDF is already well-optimized, the output size may be the same or slightly larger.
Will the content change?
No. Text, images, and layout are preserved. Only the internal encoding is optimized.