PDF Too Large to Email? 5 Ways to Fix It in 2026
Gmail and Outlook reject PDFs over 25 MB. Here are 5 free ways to shrink a PDF so it fits any email — no software, no signup.
Why Your PDF Won't Send
Email providers cap attachment sizes. Gmail and Outlook both limit attachments to around 25 MB, and many corporate mail servers cut that to 10 MB or even 5 MB. If your PDF is larger, the email bounces or simply won't attach.
The fastest fix is to reduce the file size. Most oversized PDFs can shrink by 50–90% without any visible quality loss.
Method 1: Compress the PDF (Easiest)
The simplest solution is to compress the PDF directly:
1. Go to Breklo's Compress PDF tool
2. Drop your PDF onto the page
3. Choose Medium for a balance of quality and size, or High for the smallest file
4. Download the compressed result
A 30 MB scanned PDF often drops to 3–5 MB on High mode — easily small enough to email.
Method 2: Split the PDF Into Smaller Files
If the document is genuinely large (like a 200-page report), splitting it into parts can be better than compressing:
1. Use Split PDF
2. Extract page ranges (e.g. pages 1–50, 51–100)
3. Send each section as a separate email
This keeps full quality while making each file small enough to send.
Method 3: Remove Unnecessary Pages
Many PDFs contain blank pages, cover sheets, or sections the recipient doesn't need. Use Delete PDF Pages to remove them before sending. Fewer pages means a smaller file.
Method 4: Convert Images Before They Become a PDF
If you created the PDF from photos, the images are likely the cause. Next time, compress the images first, then convert them to PDF. The resulting PDF will be a fraction of the size.
Method 5: Use a Cloud Link Instead
If nothing else works, upload the PDF to a cloud service (Google Drive, Dropbox) and email the share link instead of the file. But for most cases, compression alone solves the problem.
Which Method Should You Use?
| Situation | Best method |
|---|---|
| Scanned document | Compress (High mode) |
| Very long report | Split into sections |
| Photos turned into PDF | Compress images first |
| Has extra pages | Delete unwanted pages |
For 90% of cases, compressing the PDF is all you need.
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Frequently asked questions
What is the maximum PDF size for Gmail?
Gmail allows attachments up to 25 MB. If your PDF is larger, Gmail automatically suggests uploading to Google Drive and sending a link instead.
How do I make a PDF smaller to email it?
The easiest way is to compress it. Use a free tool like Breklo's Compress PDF, choose Medium or High mode, and download the smaller file. Most PDFs shrink by 50–90%.
Will compressing a PDF for email reduce quality?
Medium mode keeps quality high and is unnoticeable for most documents. High mode reduces quality slightly for maximum size reduction — ideal for scanned documents.
Can I email a PDF larger than 25 MB?
Not as a direct attachment on Gmail or Outlook. You either need to compress it below the limit, split it into smaller files, or share it via a cloud link.
Is it safe to compress a confidential PDF online?
With Breklo, yes. All compression happens in your browser — the file never uploads to any server, so confidential documents stay private.