Compress PDF
Reduce file size by optimising images and removing duplicate and unused data.
Runs in your browser — files never leave your deviceInput: PDFOutput: PDF
or drag and drop a file here
About Compress PDF
Choose a level, or set resolution and quality yourself. Images are downsampled and re-encoded, duplicate resources merged and unused objects removed — all in your browser. You'll see the exact size before and after.
How it works
- Add your pdf — drag and drop or browse.
- Choose your settings.
- Click the action button and wait a moment.
- Download the result. Nothing was uploaded.
Good to know
- Text-only PDFs are usually already compact — the tool returns the original if it can't make the file smaller.
- Embedded fonts are de-duplicated but not re-subset. CMYK and masked images are left unchanged to preserve colour fidelity.