PDF File Too Large for Email? Quick Ways to Fix It

Common Email Size Limits

Most email providers reject attachments above a certain size:

Provider	Attachment Limit
Gmail	25 MB
Outlook / Hotmail	20 MB
Yahoo Mail	25 MB
Apple iCloud Mail	20 MB
Corporate Exchange	Often 10–25 MB

If your PDF exceeds these limits, you have two main strategies: compress or split.

Strategy 1: Compress the PDF

Compression reduces file size by re-rendering pages as optimized JPEG images at lower resolution.

Pros:

• Significant size reduction (often 50–80% smaller)
• Single file output — easy to attach

Trade-offs to know:

• Pages become image-based — text is no longer selectable or searchable
• Higher compression = more visible quality loss
• Not reversible — keep your original file

Compression Levels

Level	JPEG Quality	DPI	Typical Use
Low	85%	150	Minimal quality loss, moderate size reduction
Medium	60%	120	Good balance for general sharing
High	35%	96	Maximum reduction, noticeable quality loss

Best for: Image-heavy PDFs, quick previews, or when the recipient doesn't need to copy text. Compress your PDF here →

Strategy 2: Split into Smaller Parts

Splitting divides your PDF into multiple smaller files — each containing a subset of pages.

Pros:

• Completely lossless — text, images, and formatting are preserved exactly
• Text remains selectable and searchable
• You control exactly which pages go where

Trade-offs:

• Multiple files to attach (and for the recipient to manage)
• Recipient may need to merge them back

How to Split for Email

• Go to PDF Worker's Split PDF tool
• Upload your PDF
• Choose "Split Every N Pages" and set a number that keeps each part under the email limit
• Download the parts and attach them separately

Best for: Text-heavy documents, legal files, or anything where quality and searchability matter.

Which Strategy Should You Use?

Consideration	Compress	Split
Quality preservation	Lossy (image-based)	Lossless
Text selectable	No	Yes
Number of files	1	Multiple
Size reduction	Very high	Depends on page count
Recipient effort	Low	Slightly higher

Our recommendation: If the PDF contains important text that needs to stay selectable, split first. If the PDF is mostly images or a quick preview, compress.

Other Tips

• Check actual file size before attaching — your email client may show you
• Use cloud links as an alternative — upload to Google Drive or Dropbox and share a link instead of attaching
• Remove unnecessary pages first with Split/Extract to reduce size before compressing

Fix It Now

• Compress PDF — Reduce file size (image-based output)
• Split PDF — Divide into smaller lossless parts