PDF Compressor
Reduce PDF file size directly in your browser so documents are easier to email, upload, and archive without installing anything.
Processing
Compression happens locally in the browser, where pages are re-rendered and rebuilt into a smaller PDF output.
Input formats
Standard PDF files
Output
Compressed PDF download
Best for
Email attachments, portal uploads, document archiving, and low-bandwidth sharing
Drop your PDF here
or click to browse
How it works
- 1Upload your PDF — it never leaves your device
- 2Choose a compression level: Low preserves quality, High maximises size reduction
- 3Each page is rendered and re-encoded as an optimised JPEG image
- 4The pages are reassembled into a new PDF ready to download
About This Tool
Large PDFs are one of the most common reasons a document upload fails. This page helps you generate a smaller version quickly so the file is easier to submit, send by email, or store.
Because the process runs in the browser, it is also a practical choice when you are handling documents that should stay on your own machine rather than being uploaded to a remote conversion service.
Why People Use It
- Private in-browser PDF processing
- Useful for reducing oversized email or portal uploads
- Simple output workflow with no sign-up barrier
Typical Use Cases
- Meeting strict PDF upload limits on websites
- Sending documents as email attachments
- Reducing scanned PDFs before archiving
- Creating lighter copies for document sharing
How To Use PDF Compressor
Step 1
Upload the PDF file you want to reduce.
Step 2
Choose the compression workflow provided on the page.
Step 3
Let the browser reprocess and rebuild the document.
Step 4
Download the smaller PDF for upload or sharing.
Common Questions
Does PDF compression reduce quality?
Compression can reduce visual quality depending on the source document and the amount of size reduction needed, but it is often a worthwhile tradeoff for upload and sharing constraints.
Will the PDF leave my device?
No. The PDF compressor on this site runs in the browser rather than uploading the file to a conversion server.
Can it help with scanned PDFs?
Yes. Scanned PDFs are often image-heavy, so they are common candidates for browser-based size reduction.