How to Compress a PDF for Email
Trying to email a PDF that bounces back as too large? Most email providers cap attachments around 20–25 MB.
Open the Compress PDF toolWhen an attachment is rejected, the file itself is usually the problem — scanned pages and embedded images bloat a PDF fast. Compressing it brings the size down enough to send without splitting it into multiple emails or switching to a file-sharing link.
This tool shrinks your PDF right in the browser, so you can attach it to Gmail, Outlook, Yahoo, or any other mail client in seconds.
Steps to Compress a PDF for Email
Upload your PDF
Drag the file into the tool or click to browse. It loads instantly in your browser.
Pick a compression level
Choose light, balanced, or strong compression depending on how small you need the file.
Download the smaller PDF
Save the compressed file in one click — ready to attach, upload, or submit.
Keeps text sharp
Smart compression strips redundant data and recompresses images without making text fuzzy.
100% private
Everything happens in your browser. Your files are never uploaded to a server, so nothing is stored, shared, or seen by anyone but you.
Free, no sign-up
No account, no watermark, and no install. Use it as many times as you need, completely free.
Ready to start?
Compress PDF runs free in your browser — your files never leave your device.
Open Compress PDFFrequently asked questions
What size should a PDF be to email it?+
Aim for under 20 MB to be safe across Gmail, Outlook, and most corporate mail servers. Under 10 MB is even safer if the recipient has stricter limits.
Will compressing reduce the quality of my PDF?+
Text stays crisp because it is vector-based. Image-heavy pages are recompressed, and you control how aggressive that is with the compression level.
Is there a file size limit?+
The tool runs in your browser, so it comfortably handles typical documents. Very large scans may take a few extra seconds to process.