How to Send a Large PDF by Email

You attach a PDF and your email service says it is too large, or the receiver’s inbox rejects it. Most limits can be solved without any special software. This guide shows three ways to shrink what you send, in the order I recommend trying them.

Option 1: Compress the PDF

Use Compress PDF with the Recommended level. This works very well for scans and photo-heavy files. In my test, a practice PDF of 6,789.4 KB became 541 KB, a reduction of 92.0%. The pages become images, so the text can no longer be selected. Keep your original. More details are in our guide on meeting an upload size limit.

Option 2: Send Only the Pages That Are Needed

If the receiver only needs a few pages, extract them with Split PDF. When I extracted one page from a 4-page practice PDF of 6,789.4 KB, the new file was 1,697 KB. Pages are copied as they are, so the quality does not change.

Option 3: Send the PDF in Parts

For a long file, cut it into parts and send each part in a separate email. Follow our guide on splitting a PDF into parts, and tell the receiver the order of the parts.

Check Before You Send

Open the new file and scroll through every page.
Zoom in on small text and signatures.
Check the size in your file manager against the email limit.
Keep the original file.

Which Option Should You Choose?

A scan or photo-based file: compress it.
A long document where only some pages matter: extract those pages.
A long document that must be sent whole: send it in parts, or compress it first.