How to Reduce PDF File Size for Email Attachments
Hitting email attachment limits is common with scan-heavy PDFs. PDFSnap helps you reduce file size before sending — without uploading the document to a compressor website.
Compress PDF for emailTypical email size limits
Many providers limit attachments to roughly 10–25 MB. A few high-resolution scans can exceed that quickly.
Compressing image-heavy pages is often more effective than zipping the PDF, because the bulk of the size is embedded images.
Compress before you attach
Use PDFSnap Compress with the Balanced preset first. Check the downloaded size in your file manager.
If you still need a smaller file, try Maximum compression. Text-only PDFs may not shrink much — merge or split first if the issue is page count rather than image weight.
Keep privacy when emailing HR or legal PDFs
Local compression avoids exposing payroll, contracts, or client workpapers to upload-based tools.
PDFSnap never stores your file on backend servers during compression.