Official source checked

Gmail PDF upload size limit

Email attachments sent through Gmail

Short answer

25 MB maximum attachment size

Compress to 10MB when the recipient also has a mail gateway or form limit; use a file-sharing link for larger PDFs.

Compress to 10MB Official source

Source checked: 2026-09-28

Effective date: Not stated by source

File type: PDF and other attachment types

Dataset status: verified:false

Change-log status

The current rule text was found on the official source, but the source did not state an effective date for the upload-size rule. This row remains noindex and outside the sitemap until a dated official change can be verified.

Open change review

Nearby upload limits

USCIS12 MB maximum per uploaded file IRSCurrent attachment cap not confirmed by the linked source

This staged dataset began on 2026-06-29. Each row records its own source-check date, scope, and any unconfirmed cap. Rows remain unverified where an exact policy effective date is not established; always re-check the official source and active upload prompt before submitting documents.