Guides

Practical, step-by-step help for the jobs our tools do: photo sizes for applications, file-size limits on forms and image sizes for social media.

• Passport photo size by country
  Passport and visa photo sizes for 7 countries in one table, with head size, background colour and the mistakes that get photos rejected.
• How to reduce a photo to 50 KB for online forms
  Step-by-step: make a photo or signature fit the 20 KB, 50 KB or 100 KB limit on exam, job and government forms, on phone or computer, for free.
• How to reduce the size of a scanned PDF
  Why scanned PDFs are so large and six practical ways to shrink them for email and upload limits like 200 KB, 500 KB or 1 MB, without special software.
• Social media image sizes cheat sheet
  The image sizes in pixels for posts, stories, covers, banners and thumbnails on every major platform, plus the safe zones where text gets hidden.