PDF Compressor
Free PDF compressor. Shrink PDF file size by re-compressing streams locally - no upload, no watermarks.
Compression runs in your browser. The PDF is never uploaded to any server.
About PDF Compressor
Reduce the size of a PDF by re-compressing its content streams with built-in deflate. Ideal for emails and uploads where size matters - and your file never leaves your machine.
How to use it
- 1Choose a PDF to compress.
- 2Click Compress and wait a moment.
- 3Compare before/after and download.
Examples
Typical
Input
4.8 MB PDFResult
often drops to 2-3 MBText-heavy
Input
large text PDFResult
good reductionFrequently asked questions
Is quality lost?
Re-compression is lossless for text and vectors.
What if it is already compressed?
The tool reports that the file is already optimally compressed.
Does it remove images?
No - image data is preserved as-is.