Compress PDF for email
Large attachments get bounced or fill up inboxes. This preset gets your PDF under 2 MB so it sends without trouble.
Nothing is uploaded. Your files stay private.
Popular sizes
Opens the tool with the right settings already chosen.
How to compress a PDF
Three steps, about ten seconds.
- 01
Add your PDF
Drop it in the box above, or tap to choose from your phone or computer.
- 02
Pick a target
Choose a size like "Under 200 KB" for portals, or keep the best-quality default.
- 03
Download
Check the new size and save the file. Done.
Compressing a PDF for email
Gmail and Outlook accept attachments of about 20 to 25 MB, but many company mail systems set lower limits, and big attachments are slow on a phone. This preset aims for under 2 MB.
Only the pictures inside the PDF are re-saved, so typed text stays sharp. Already under 2 MB? You get your original back.
For several big documents, compress each one rather than zipping them together.
Frequently asked questions
What size PDF can I email?
Gmail allows 25 MB and Outlook 20 MB in total, but under 2 MB sends and opens quickly anywhere.
How do I make a PDF smaller?
Drop the PDF in. Quikdo re-saves the pictures inside it at a lower resolution and quality, which is where most of the size is. Pick a target like 200 KB if a portal has a limit.
How do I get a PDF under 200 KB?
Choose the 200 KB target before you drop the file in. Quality is lowered only as far as needed to get under it.
How do I convert a PDF from MB to KB?
Set a target in KB, such as 500 KB or 200 KB, and compress. A 3 MB scan often ends up a few hundred kilobytes.