Compress a PDF to a smaller file size
Make a PDF smaller for email, uploads and sharing. Pick how much to compress: images are resampled while text and drawings stay sharp. It's free, with no watermark and no sign-up, and your files are never stored.
Quick answer
How do I reduce the size of a PDF for free?
Open Mergevanta's Compress PDF tool, add your file and pick a level: Less compression, Recommended or Extreme. Images are resampled and re-encoded, fonts are trimmed and unused data is removed, while text stays sharp and selectable. You see the size before and after, with no watermark or sign-up.
- Price
- Free
- Watermark
- None
- Sign-up
- Not required
- Accepts
- You get
- A smaller .pdf
- Processing
- Encrypted server for files up to 4 MB, your browser for larger ones
- Files stored
- Never
- Works on
- Windows, macOS, Linux, iPhone, iPad and Android
Updated
Why use Mergevanta to compress a PDF
Text stays sharp
Only images are resampled and re-encoded. Text and vector drawings are never turned into pictures, so they stay crisp and searchable.
Three clear levels
Choose high quality, the balanced Recommended setting or the smallest file, then see exactly how much you saved.
Big files welcome
Files up to 4 MB are compressed on our server; larger ones are compressed right in your browser, so there's no upload cap.
Private and free
No watermark and no sign-up. Uploads are encrypted end to end, processed in memory and deleted straight away.
How to compress a PDF with Mergevanta
- 1
Click Choose PDF, or drop your file onto the page.
- 2
Pick a level: Less compression · high quality, Recommended or Extreme · smallest file.
- 3
Open More options to convert to grayscale, remove metadata or flatten form fields, if you want.
- 4
Press Compress PDF and check the before and after sizes.
- 5
Press Download to save the smaller PDF.