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Email attachment size limits

Compress a PDF for email attachments

Make a large PDF easier to email by reducing image-heavy pages locally in your browser while keeping the original file unchanged.

compress PDF for emailreduce PDF size for emailPDF attachment too large
This compression mode rasterizes each page into JPEG, which is best for scanned or image-heavy PDFs. For text-perfect structural optimization, use a resource-only compressor.

Finished files download automatically. No upload API is used.

Real use cases

When Compress PDF for Email is useful

  • Shrink a scanned report that is rejected by an email attachment limit.
  • Prepare an invoice, proposal or receipt packet for a client email without uploading it to a converter.
  • Create a smaller review copy while keeping the original high-resolution PDF for printing and records.
  • Reduce phone-scanned forms before sending them from a mobile connection.
Privacy advantage

Built for private files

Useful for private invoices, client reports and HR documents because the source PDF stays on your device during core processing.

No account required for core toolsBrowser-local processing where statedDownload a new copy and keep your original safe

Real-world examples

How people use Compress PDF for Email

Client report attachment

A consultant exports a report with large page images and the mail provider rejects the attachment. They compress a copy locally, open it to check charts and headings, then send the smaller file while keeping the source report unchanged.

Invoice packet for accounting

A vendor invoice bundle is too large for an approval email. The finance user compresses the packet in the browser and verifies invoice numbers, totals and stamps before attaching it.

Step-by-step

How to finish this task safely

  1. 01Upload the PDF that is too large to attach.
  2. 02Start with the recommended compression level for a readable review copy.
  3. 03Download the result and check its size in your file manager.
  4. 04Open several pages to verify text, charts, signatures and QR codes.
  5. 05If it is still too large, remove unnecessary pages or use a stricter target-size workflow.

FAQ

Common questions about Compress PDF for Email

Does compressing a PDF guarantee it will fit an email limit?

No. The final size depends on page count and embedded images. Check the downloaded file size against your email provider's limit.

Will the original PDF be changed?

No. Download a separate compressed copy and keep the original for printing, archives or later editing.

Are email attachments uploaded to PDFPerch?

No for the core compression workflow. The PDF is processed in browser memory and is not sent to a conversion server.

What should I verify before sending?

Check page count, small text, charts, signatures, stamps, QR codes and the final attachment size.

Why this page exists

People search for PDF tools by the exact job they are trying to finish: a 500KB upload limit, a visa portal, a client proof, or a phone signature. This page keeps that task obvious while using the same tested core engine.

How to use Compress PDF for Email

  1. 01. Choose your files and keep the browser tab open.
  2. 02. Use the visible controls to set order, page choices, quality or signature position.
  3. 03. Start processing. Local tools do not upload your document bytes.
  4. 04. Download the result, reopen it, and confirm page count, clarity and layout.

Related compress pdf pages

Core processing runs in this browser unless a page explicitly says otherwise.