How to Compress PDF for Email: Reduce File Size Free
Learn how to compress PDF files for email attachments. Free methods to reduce PDF size while keeping quality.
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PDF CompressorYour PDF is too large to email? Most email services limit attachments to 25MB. Here's how to compress your PDF to fit, or better alternatives for sharing large files.
Why PDFs Get Too Large
Common causes of large PDFs:
- High-resolution images
- Embedded fonts
- Scanned documents
- Multiple pages
- Unoptimized graphics
Method 1: Online PDF Compressor (Easiest)
The fastest way to reduce PDF size.
Steps:
- Go to LinkyHost PDF Compressor
- Upload your PDF
- Wait for compression
- Download the smaller file
What to Expect:
- 50-80% size reduction typical
- Maintains readable quality
- Works with any PDF
Best For:
- Quick compression
- One-time use
- Any operating system
Method 2: Share as Link Instead
If compression isn't enough, share your PDF as a link.
Steps:
- Go to LinkyHost PDF to Link
- Upload your PDF (any size)
- Copy the shareable link
- Paste in your email
Benefits:
- No size limits
- Track when recipients open it
- More professional appearance
This is often better than compressing because:
- Works for any file size
- Recipients don't have to download
- You get view analytics
Method 3: Adobe Acrobat (Paid)
If you have Adobe Acrobat:
- Open your PDF
- File > Save As Other > Reduced Size PDF
- Choose compatibility
- Save
Or:
- File > Save As Other > Optimized PDF
- Adjust settings
- Save
Pros:
- Fine-grained control
- Batch processing
- Professional tool
Cons:
- Requires paid subscription
- Can be complex
Method 4: Preview (Mac)
Built into macOS:
- Open PDF in Preview
- File > Export
- Set Quartz Filter to "Reduce File Size"
- Save
Pros:
- Free on Mac
- No internet required
Cons:
- Quality reduction can be significant
- Mac only
Method 5: Print to PDF (Windows)
Windows built-in method:
- Open PDF in any viewer
- File > Print
- Select "Microsoft Print to PDF"
- Choose lower quality settings
- Print to new file
Results vary significantly with this method.
Compression Quality Levels
Most compressors offer quality options:
| Level | Size Reduction | Quality | Best For |
|---|---|---|---|
| Low | 30-50% | Good | Text documents |
| Medium | 50-70% | Acceptable | General use |
| High | 70-90% | Lower | Web viewing |
Tips for Better Compression
Before Compressing:
-
Remove unnecessary pages Delete blank pages or irrelevant sections
-
Crop excess whitespace Reduce margins if they're too large
-
Remove embedded thumbnails These add unnecessary size
During Compression:
-
Start with medium compression You can always compress more if needed
-
Check quality after Make sure text is still readable
-
Try multiple tools Different tools have different results
Size Guide for Email
| Email Service | Max Attachment |
|---|---|
| Gmail | 25MB |
| Outlook.com | 20MB |
| Yahoo Mail | 25MB |
| Corporate Outlook | Often 10MB |
Pro tip: Aim for under 10MB to ensure delivery to any recipient.
What If Compression Isn't Enough?
If your PDF is still too large after compression:
Option 1: Split the PDF
Break into multiple smaller files using Split PDF.
Option 2: Share as Link
Upload to LinkyHost and share the link instead of attaching.
Option 3: Use Cloud Storage
Upload to Google Drive or Dropbox and share a link.
Recommended: Option 2 is best for professional communication.
Compression Comparison
We tested a 50MB PDF with different methods:
| Method | Result | Quality |
|---|---|---|
| LinkyHost Compressor | 12MB | Good |
| Adobe Acrobat | 15MB | Good |
| Mac Preview | 8MB | Fair |
| Windows Print to PDF | 20MB | Good |
Results vary based on PDF content.
Frequently Asked Questions
Will compression affect quality?
Yes, but good compressors maintain readability. Text remains sharp; images may be slightly less detailed.
Can I compress a PDF multiple times?
You can, but quality degrades each time. Compress once with the right settings.
Why is my compressed PDF larger?
This can happen with already-optimized PDFs. Try a different compression tool or share as a link instead.
What's the smallest a PDF can get?
Depends on content. Text-only PDFs can get very small. Image-heavy PDFs have limits due to image data.
Best Practice Workflow
For sharing PDFs via email:
-
Check the size - Is it under 10MB? If yes, attach it.
-
Try compression - Use PDF Compressor
-
Still too large? - Share as a PDF link
-
Write professional email:
Hi [Name],
Please find the document at the link below:
[Your LinkyHost Link]
Let me know if you have any questions.
Best,
[Your Name]
Related Tools
- PDF Compressor - Reduce PDF size
- PDF to Link - Share any size PDF
- Split PDF - Break into smaller files
- PDF Merger - Combine PDFs