Email attachment prep
Compress a large PDF for email
Make oversized PDFs easier to email or upload. Choose a compression level, review the result, and download a smaller PDF without added watermarks.
How it works
- 1Open Compress PDF
- 2Upload the large PDF
- 3Choose a compression level
- 4Download and check the smaller file
When compression helps
Compression is useful when a PDF is too large for email, client portals, application forms, or signing workflows.
- Large scanned documents
- Reports with images
- Bundles with many pages
- Documents prepared for email or upload
Balance size and readability
More compression can reduce visual quality. Pick the level that gets the file small enough while keeping text and images readable.
- Try recommended compression first
- Use stronger compression for image-heavy PDFs
- Open the result before sending
- Keep the original if quality matters
Common questions
Practical limits matter. Review the answers below before using this workflow for important documents.
Can you guarantee a PDF will be under 10MB or 25MB?
No. The final size depends on the document content, images, and existing compression.
Will the PDF lose quality?
Compression can reduce image quality. Review the final PDF before sending it.
Can I sign a PDF after compressing it?
Yes. After compression, you can use the signing tools if the document still looks correct.