How to Compress a PDF for Email Attachment (Free, Any Device)
Most email providers reject attachments over 10–25 MB. Compress your PDF to a sendable size in seconds — no software, no account, works in any browser.
Email attachment limits vary by provider — Gmail caps at 25 MB, Outlook at 20 MB, and many corporate mail servers are set even lower. If your PDF exceeds the limit, the send fails silently or bounces. FixMyPDF's compressor reduces most PDFs by 40–80% in seconds, entirely in your browser, with no upload required.
What Size Should a PDF Be for Email?
For reliable delivery across all email providers, aim for under 10 MB. For corporate recipients with stricter servers, under 5 MB is safer. PDFs containing mainly text compress very well — a 50-page text document is typically under 1 MB. PDFs with embedded high-resolution images are larger and benefit most from compression.
How to Compress PDF for Email (Step-by-Step)
Open fixmypdf.in/tools/compressor. Upload your PDF — drag and drop or click to browse. Choose compression level: High for maximum size reduction, Medium for balance, Low for quality-sensitive documents. Click Compress and download the result. Check the file size before sending.
Which Compression Level to Use for Email
For text-heavy business documents: High compression. Quality remains readable on screen, file size drops dramatically. For PDFs with images that need to stay sharp (product catalogues, design work): Medium. For documents that will be printed by the recipient: Low or Medium — printing requires higher resolution than screen viewing.
If the PDF Is Still Too Large After Compression
If the compressed PDF is still over the email limit, consider splitting it using the split tool and sending in parts, or sharing via Google Drive / Dropbox link instead of attaching.
Privacy Note
Unlike other online compressors, FixMyPDF processes your file entirely in your browser. Your PDF is never uploaded to a server — important if the document contains confidential information.
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