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1 MB is the practical email ceiling and the limit on most corporate mail gateways. At this size you can keep a multi-page document genuinely readable.
No upload. No watermark. No sign-up. Every tool mentioned here runs inside your browser.
Gmail allows 25 MB but corporate gateways commonly cap at 10 MB, and Outlook clients behave poorly above a few MB. A 1 MB file sends instantly and opens on any phone.
If you are sending a 30-page report, 1 MB is a reasonable target — you will lose some photo quality, not readability.
Many reports exported from Word or Google Docs carry redundant structure that Safe mode strips for free, keeping text perfectly selectable.
Only if that is not enough should you move to Light mode, which re-encodes page images at 150 DPI.
On screen at normal zoom, usually not. Photos and fine detail will be softer; text stays legible.
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