PDF Compressor

What is the PDF Compressor?

The PDF Compressor reduces the file size of a PDF so it is easier to email, upload, or store. It works by optimising images and compressing internal data — all in your browser, with no file uploads required.

Email services, cloud drives, and document platforms often have file size limits. Compressing a PDF before sending is the fastest way to stay within those limits without sacrificing readability.

Who Is This Tool For?

• Office workers — shrink large PDF reports and presentations before attaching them to emails.
• Students — compress dissertation and assignment PDFs to meet submission portal upload limits.
• Lawyers and administrators — reduce PDF file sizes for client portals, court submissions, or regulatory filings.
• Designers — compress PDF portfolios and proofs for fast sharing with clients.
• Anyone — reduce a scanned document PDF that is too large to share via email or messaging apps.

Common Use Cases

• Your email attachment exceeds the 10 MB limit and you need to compress the PDF before sending.
• You scanned a multi-page document and the resulting PDF is 50 MB — compress it to a fraction of that size.
• A client portal or government form submission has a 5 MB file size limit and your PDF exceeds it.
• You want to reduce storage space used by a large archive of PDF documents.
• You are sharing a PDF portfolio with a potential client via a messaging app that limits file size.

How to Compress a PDF

1. Upload your PDF by dragging it onto the tool or clicking to browse.
2. Select a compression level (higher compression reduces quality more; lower compression keeps it closer to the original).
3. Click Compress — the tool shows you the original size and the reduced size.
4. Download the compressed PDF.

Your PDF is processed entirely in your browser. It is never uploaded to a server.