How to Reduce PDF Size Under 1MB - Email Ready Files

Need to Reduce PDF Size for Email?

Most email servers limit attachments to 10-25MB, and some are as low as 5MB. If your PDF exceeds these limits, you need to compress it.

Why PDFs Become Large

• 1.High-resolution images - Photos, scans, graphics
• 2.Embedded fonts - Full font files inside PDF
• 3.Unoptimized content - Duplicate elements, metadata
• 4.Multiple pages - More content = larger file

How to Compress PDF Under 1MB

Using PDFHubs (Recommended)

• 1.Go to PDFHubs.site/tool/compress-pdf
• 2.Upload your large PDF
• 3.Select compression level:

- Low = Smallest file (best for email) - Medium = Balanced quality - High = Best quality

• 4.Download compressed PDF

Expected Compression Results

Advanced Tips for Maximum Compression

1. Remove Unnecessary Pages

Delete blank pages and irrelevant content before compressing.

2. Use Low Quality for Images

If the PDF is for screen viewing only, image quality can be reduced significantly.

3. Convert to Grayscale

Color images take more space. Convert to grayscale if color isn't essential.

4. Flatten Forms and Annotations

Interactive elements add file size. Flatten them if not needed.

PDF Too Large Even After Compression?

If compression alone isn't enough:

• 1.Split the PDF into smaller files
• 2.Use cloud sharing (Google Drive, Dropbox)
• 3.Convert to ZIP for additional compression

Email Attachment Size Limits by Provider

Conclusion

PDFHubs' compression tool can reduce most PDFs by 60-90%, making them email-ready instantly. No software installation, completely free.