Split PDF for Email Attachments
(Under Gmail Limit) – Easy Method 2026
Your 40MB PDF won't send via Gmail? Gmail's limit is 25MB and your email keeps bouncing back.
With PDFSwift, you can split any large PDF into smaller parts under 20MB in seconds. Free, private, and works on any device. Here's exactly how to send large PDFs via email without hassle.
⚡ Quick Steps: Split PDF for Email with PDFSwift
Total time: Less than 2 minutes. Completely free.
📧 Email Provider Attachment Limits (2026)
| Email Provider | Limit | Safe Size | Notes |
|---|---|---|---|
| Gmail | 25MB | 20-22MB | Attachments over 25MB will bounce back |
| Outlook / Hotmail | 20MB | 15-18MB | Stricter limit than Gmail |
| Yahoo Mail | 25MB | 20-22MB | Similar to Gmail limits |
| iCloud Mail | 20MB | 15-18MB | Apple's email service limit |
| ProtonMail | 25MB | 20-22MB | Encrypted email service |
🔪 PDFSwift Split Methods for Email
Split by file size
PDFSwift automatically divides your PDF into parts under a specific size
Best for: Hitting exact email limits (20MB for Gmail)
Example: 50MB PDF → 3 files of ~17MB each
Split every N pages
Divide PDF into equal page chunks
Best for: When you know roughly how many pages fit in 25MB
Example: 100-page PDF → split every 20 pages → 5 files
Split into equal parts
Split into specific number of files (2,3,4 parts)
Best for: When you want exactly 2-3 email attachments
Example: Split into 3 parts regardless of size
Extract specific pages
Send only the important pages
Best for: When only certain pages need to be shared
Example: Extract pages 5-10 from a 50-page PDF
✨ Why Use PDFSwift for Email Splitting?
100% Private
Files never leave your device. No upload, no servers, no tracking. Perfect for sensitive documents.
Super Fast
Processes instantly in your browser. No waiting for uploads/downloads. Split in seconds.
Completely Free
No signup, no hidden charges, no daily limits. Split unlimited PDFs forever.
💡 Other Ways to Send Large PDFs
Compress first, then split
Use PDFSwift Compress PDF tool to reduce file size before splitting
Fewer split files needed
Google Drive / Cloud storage
Upload to Google Drive, share link via email
No size limits, send once
WeTransfer
Free up to 2GB, sends download link via email
Good for very large files
📋 Real Example: Sending a 45MB PDF via Gmail
Original: 45MB Project Report.pdf
❌ Too large for Gmail (limit 25MB)
After PDFSwift Split by Size (20MB)
Part 1: 18MB • Part 2: 15MB • Part 3: 12MB
✓ All under Gmail limit – send in 3 separate emails
🔒 Privacy First: Your Files Never Leave Your Device
Unlike other online PDF tools that upload your documents to their servers, PDFSwift works differently:
- No upload: Your PDF stays in your browser
- Local processing: All splitting happens on your device
- No servers: We never see your documents
- Perfect for: Contracts, invoices, personal documents
📱 Works on All Devices - iPhone, Android, iPad
iPhone / iPad
Open Safari, go to PDFSwift, upload from Files or Photos, split PDF, and attach directly to Mail app. No app needed.
Android
Open Chrome, visit PDFSwift, select PDF from storage, split instantly, and share via Gmail or any email app.
Questions People Actually Ask
What is Gmail's attachment size limit in 2026?
Gmail still has a 25MB limit for attachments in 2026. If your PDF is larger than 25MB, Gmail will reject it and bounce back. Using PDFSwift, you can split your PDF into smaller parts under 20MB to stay safely under the limit.
How do I split a PDF for email using PDFSwift?
It's simple: Go to PDFSwift Split PDF tool, upload your file (it stays in your browser – private and secure), choose 'Split by file size', set target to 20MB, click Split, and download your ZIP file. The whole process takes less than a minute.
Is PDFSwift really free? Any hidden charges?
PDFSwift is completely free forever. No signup, no subscription, no hidden charges. You can split as many PDFs as you want, any size, any time. We believe PDF tools should be free and accessible to everyone.
Is it safe to upload my PDF to PDFSwift?
100% safe. PDFSwift processes files locally in your browser – they never leave your device. No upload, no servers, no third-party access. Your documents stay 100% private. This is especially important for sensitive emails containing contracts, invoices, or personal information.
Can I split PDF on my phone for email?
Yes! PDFSwift works perfectly on iPhone and Android. Open Safari (iPhone) or Chrome (Android), go to PDFSwift, upload from your phone storage, split the PDF, and attach directly to email. No app installation needed.
What if my PDF is 50MB? How many parts will I get?
With PDFSwift's 'Split by file size' set to 20MB, a 50MB PDF will split into 3 parts – approximately 17MB each. All parts are downloaded as a ZIP file. You can then send 3 separate emails or use cloud storage to share all parts at once.
Can I split a password-protected PDF?
PDFSwift supports password-protected PDFs. You'll be prompted to enter the password when you upload. Once unlocked, you can split normally. If you don't have the password, the file cannot be processed.
What's better – splitting or compressing for email?
Both! Use PDFSwift Compress PDF tool first to reduce file size. If it's still over 25MB, then split. This combination often results in fewer split files. For example, compress a 50MB PDF to 30MB, then split into 2 parts instead of 3.
What Actually Matters
- Gmail limit: 25MB – split to 20MB for safety
- PDFSwift method: Split by file size, target 20MB
- Privacy: Files stay in your browser – no upload
- Free forever: No signup, no limits
- Works on phone: iPhone, Android – no app needed
- Alternative: Compress first, then split for fewer parts
Split Your Large PDF for Email Now
Free, private, and works in seconds. No signup, no upload – your files stay in your browser. Perfect for Gmail, Outlook, and all email providers.
Files stay in your browser • No uploads • Free forever