Best PDF Compressor to Fit Email Attachment Limits
Gmail (25 MB), Outlook (20 MB), and most corporate email have attachment limits that your big PDF exceeds. Here's the fastest way to compress under the limit without visible quality loss.
Free · No signup · Files auto-delete in 1 hour
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Konomic Compress PDF
Dedicated email-size preset
Has a dedicated /compress-pdf-to/for-email preset that targets 20 MB automatically. Binary-searches over DPI to hit size. Text stays sharp even at max compression. Free.
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Smallpdf Compress
Clean UI
Three presets (high/med/low). No exact-size target. 2 ops/day on free tier.
3
iLovePDF Compress
Widely used
Similar to Smallpdf. Ads in UI. Free up to 100 MB input.
4
Ghostscript (CLI)
Power-user option
`gs -dPDFSETTINGS=/ebook -sOutputFile=out.pdf in.pdf`. Free, scriptable. Requires terminal comfort.
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