Email providers impose attachment size limits — Gmail allows 25 MB, Outlook 20 MB, Yahoo 25 MB. Compressing your PDF before sending avoids bounce-backs and ensures delivery.
Gmail: 25 MB total per email. Outlook.com: 20 MB. Yahoo Mail: 25 MB. Corporate email servers: often 10 MB or less. If your PDF exceeds the limit, compress it first.
Upload the PDF. Select Good for balanced quality, Strong for maximum size reduction. Most PDFs compress to under 5 MB on Good settings — well within all email limits.
Tip: For PDFs still over 10 MB after Strong compression, consider sharing via Google Drive or Dropbox and sending a link instead of an attachment.
Good compression works for most cases. It reduces size by 40–60% while maintaining clear readability for the recipient.
Yes — completely free at pdfeditor.onl/compress-pdf.