Compress PDF
Reduce PDF file size without losing readable quality.
Loading the tool…
This happens once. After that it works offline.How it works
- 1Choose the PDF file you want to make smaller.
- 2Pick a compression level — balanced works for most documents.
- 3Download the compressed file. The original stays untouched.
Common questions
Is my PDF uploaded to a server?
No. Compression runs inside your browser, so the file never leaves your device. That also means there is no upload wait, even for large files.
Will the quality drop?
Text stays sharp. Images are re-encoded at a lower quality, which is where most of the size saving comes from. Balanced mode is safe for documents you need to print or submit.
Is there a file size limit?
There is no limit we impose. Very large files depend on how much memory your device has, and we warn you before starting if a file looks heavy.
Does it work offline?
Yes, once the page has loaded once. Nothing needs a network connection to compress.