Compress PDF: make your file lighter
To compress a PDF with NoCatchPDF, open the tool, pick the file, and select a quality level. Compression reprocesses the embedded images right in your browser — text stays crisp and selectable, and the file never leaves your computer.
Compress my PDF now →How it works
- Open the tool. Click the button below to open the compress PDF tool.
- Pick the file. Drag in the PDF that got too big to email.
- Choose the quality. High, medium or maximum compression — see the estimate before downloading.
- Compare and download. See the size before and after, and download the compressed PDF.
Why is it free and unlimited?
Because processing happens in your browser, not on our servers. We don't pay for expensive infrastructure to process your files — so we don't need to charge you, make you sign up, or cap your usage. No catch: that's literally what the name means.
FAQ
Does the PDF text get blurry?
No. Compression acts on the embedded images; the PDF's vector text stays intact and sharp at any zoom.
How much can I reduce?
It depends on the file: scanned PDFs with large photos often shrink 50–90%. Pure-text PDFs are already lean — in those cases the tool tells you the file is already optimized.
Is the file sent to a server?
No. Compression happens entirely in your browser, using your computer's processor.