Local
Merge PDF
Combine several PDF files into one document, in the order you choose.
Compress a PDF to send by email
Most mail services refuse attachments above 20 to 25 MB, and many company mail servers set the limit even lower. Compress your PDF here so it goes through on the first try, without having to share a download link.
Your PDF has been compressed
The download link expires in 30 minutes. After that the file is deleted automatically.
Done — your file has been deleted from our servers.
Processed on your device: your file never left your computer or phone.
Thanks for your feedback!
It really helps us improve PDFacile. Your comment will be read before it is published.
Next time, do it in one click
With the Chrome extension, right-click any PDF to compress it here, without downloading or re-uploading it.
Continue with this file
Send the result straight to another tool, without downloading it.
Continue with another tool
- Secure processing
- Files deleted automatically
- No sign-up needed
Tip: with our Chrome extension, just right-click a PDF to open it here. Get it free
How to compress a PDF for email
-
Step 1: Select or drop the PDF you want to attach.
-
Step 2: Keep the Recommended level and click Compress PDF.
-
Step 3: Download the lighter file and attach it to your email.
Why attachments get rejected
Gmail accepts attachments of up to 25 MB and Outlook.com up to 20 MB, but files are encoded for sending, which adds roughly a third to their size. A PDF just under the limit can still bounce, and business mail servers often stop at 10 MB.
Recommended compression keeps text perfectly sharp and images clear on screen, which is all your recipient needs to read a contract, a quote or a report. A smaller attachment also opens faster on a phone and doesn't fill up anyone's mailbox.
Sending several documents? Merge them into a single PDF first, then compress the result: one tidy attachment is easier to handle than five.
Frequently asked questions
What size should a PDF be for email?
Aim for under 10 MB to be safe with most providers and company servers. Under 5 MB is even better if your recipient reads email on a phone.
Will the recipient notice a loss of quality?
Rarely. The Recommended level only brings images down to a resolution suited to screens; text and vector graphics are left untouched.
Can I compress several PDFs at once?
Yes. Select up to 10 PDFs: each one is compressed separately and you download them together in a ZIP file.
Is my document stored anywhere?
Only briefly. The upload is deleted after processing and the compressed file is removed automatically after 30 minutes, or immediately with Delete now.
Related PDF tools
Local
Split PDF
Break a PDF into single pages or custom page ranges.
PDF to Word
Convert PDF documents into editable Word files (.docx).
Local
JPG to PDF
Turn JPG photos and scans into a single PDF document.