How do I compress a PDF for email?

Use a PDF compressor, choose a compression level, and download the smaller PDF before attaching it to email.

What size should a PDF be for email?

Many email services limit attachments to about 25 MB, so compressing a PDF below that size helps avoid failed sends.

How to Compress PDF for Email Online Free

April 14, 20265 min read

A large PDF can fail when you attach it to Gmail, Outlook, school portals, job forms, or client emails. The common fix is simple: compress the PDF before sending it.

Use the free PDF Compressor to reduce PDF file size online with no upload, no signup, and no watermark.

Steps to Compress a PDF for Email

Open the PDF Compressor.
Select your PDF file.
Choose medium compression for most email attachments.
Download the smaller PDF.
Attach the compressed PDF to your email.

Best Compression Level for Email

Use medium compression for everyday documents, reports, invoices, and scanned forms. Use maximum compression when the file must fit a strict upload limit. Use light compression for presentations, portfolios, or PDFs with important images.

More PDF Tips

If a PDF is still too large, split it into parts with the PDF Split tool. If you need to send multiple documents together, merge them first with PDF Merge, then compress the final file.

Try it now

Compress your PDF with the free online PDF Compressor and make it easier to email.