Compress PDF

1MB Is Small Enough to Upload,
Large Enough to Look Untouched

This is the size where compression stops being a visible trade-off. Scans stay sharp, text stays crisp — and it clears almost every upload limit that isn't specifically strict. Runs entirely in your browser.

Compress to 1MB →
No uploadFree foreverBefore/after size shown

1MB against the limits you'll actually run into

Gmail / Outlook attachments

Both allow 20–25MB per email. A 1MB PDF uses a tiny fraction of that — compressing this far isn't about clearing email limits at all.

Job & university portals

Most application systems cap resumes and supporting documents between 2–5MB. 1MB clears these with room to spare.

WhatsApp document sharing

WhatsApp allows documents up to 100MB, but smaller files send and open faster on mobile data — 1MB is comfortably quick without any visible quality cost.

Strict government portals

Some portals cap well below 1MB. If yours does, this preset won't fit — see 200KB or 100KB instead.

What you keep at 1MB that smaller presets give up

Squeezing a PDF down to 100KB or 200KB means dropping image resolution to the point where fine print and signatures start to blur. At 1MB, there's enough room that a scanned page can stay close to its original resolution — 3 to 6 scanned pages typically fit at a quality where nothing looks compressed, and a plain-text document can run 30-60 pages without approaching the limit. If your destination doesn't specifically require a smaller file, this is the preset with the least to think about.

Frequently asked questions

Related tools

Smart CompressCompress PDFCompress for EmailWhatsApp PDF