mypdf.space

Short answer

Gmail rejects oversized attachments. Drop your PDF below, use Keep text for everyday mail or Target size when a form is stricter. Compression runs locally — nothing is uploaded to mypdf.

Stays on your device·No upload·No account·No watermark·Offline after install·How it worksMethodologyPrivacy

Compress PDF for Gmail

Free · private · files stay on your device

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How it works

  1. 1

    Open the PDF you want to shrink.

  2. 2

    Choose Keep text (recommended), Max shrink, or Target size.

  3. 3

    For target size, type a number and pick KB or MB; for max shrink, pick Low / Medium / High (or custom DPI).

  4. 4

    Click Compress, check the resulting size, and download.

Files never leave your device

Your PDF is processed in this browser tab. Files never leave your device, and mypdf.space does not receive uploads. No account, no watermark, no server-side copy.

Limits worth knowing

  • Exact Gmail limits can change; when unsure, stay well under 25 MB.
  • Very image-heavy decks may need Max shrink or a size page like 2 MB / 5 MB.

Frequently asked questions

  • What size PDF can I send with Gmail?
    Gmail’s limit is on the large side for consumer email, but many corporate filters are stricter. Prefer under 10–25 MB; portals often want 1–2 MB.
  • Does compress for Gmail upload my file?
    No. It runs in your browser.
  • Still too large?
    Split the PDF or use Drive links for huge decks — or Target size on a size page.

Written by Sumit · Last updated 23 Oct 2026