Guides
Plain-English help with passport and visa photos, with making photos, signatures and PDFs fit upload limits, and with scanning documents, enlarging photos and removing backgrounds. Each guide is based on the official rules and says where they come from.
- Passport Photo Size by Country: mm, Inches and PixelsPassport and visa photo sizes in mm, cm, inches and pixels for 58 of the 60 countries and regions on SafeResize, with each file size limit.5 min read
- How to Take a Passport Photo at Home With Your PhoneA step-by-step way to take a passport or visa photo at home with a phone: the wall, the light, the distance, and the checks to do before you upload.6 min read
- Why Passport and Visa Photos Get Rejected, and How to Fix Each ProblemCommon reasons a passport or visa photo is turned down, from file size and pixels to shadows and glasses, with the fix for each one.7 min read
- US Visa Photo Requirements for the DS-160, ExplainedThe US visa photo rules in plain words: 600 × 600 to 1200 × 1200 pixels, up to 240 KB, JPEG, white background, head 50% to 69% of the height.5 min read
- Schengen Visa Photo Size: The 35 × 45 mm Rules ExplainedWhat a Schengen visa photo needs: 35 × 45 mm, a face 32 to 36 mm high (71% to 80%), a plain light background, and how to print one at the right size.5 min read
- UK Passport Photo Rules for Online ApplicationsThe digital photo rules for a UK passport application: at least 600 × 750 pixels, 50 KB to 10 MB, taken in the last month, and why you should not crop it.5 min read
- Which Background Colour Does Your Passport Photo Need?White, off-white, light grey or "anything but white": the background each country asks for in passport and visa photos, with the official sources.5 min read
- How to Make a PDF Smaller for an Upload LimitHow to get a PDF under 100 KB, 200 KB or 1 MB for an online form while keeping it readable, and what to do when it still will not fit.6 min read
- KB, MB and Why the Same File Shows Two Different SizesWhy Windows says a file is 98 KB while your phone says 100 KB, how upload limits are counted, and how to make a file that passes either way.4 min read
- How to Prepare Your Signature for an Online FormSign on paper, take a photo, and turn it into a clean signature file with the exact pixels and KB size an online form asks for.5 min read
- How Many Pixels Is a Passport Photo? Millimetres to PixelsA 35 × 45 mm passport photo is 413 × 531 pixels at 300 DPI, and 2 × 2 inches is 600 × 600. How to convert any size, and the pixel rules online forms use.5 min read
- Visa Photo vs Passport Photo: What Is Different?Is a visa photo the same as a passport photo? See how the size, head size, pixels and file limit differ for the US, Canada, India, the UK and Singapore.5 min read
- Photo Size for Online Forms: KB, Pixels and cm ExplainedA form can ask for a photo in KB, pixels and cm all at once. What each rule means, how they connect, and the order to fix them in.5 min read
- How to Scan a Document With Your Phone: Clear PDF ScansHow to scan paper with a phone camera: the light, the surface and the angle that give a clear scan, how to deal with shadows, and how to make one PDF.6 min read
- Enlarge a Photo Without Losing Quality: What Is PossibleWhat enlarging a photo can and cannot do, when to use Fast or AI mode, and how many pixels a print or a 4K screen needs, with the sums worked out.7 min read
- How to Compress Several PDFs at Once and Get a ZIPMake up to 25 PDFs smaller to one size in a single go, pick the right size for a form, and download each file or one ZIP. Nothing is uploaded.5 min read
- How to Remove the Background From a Photo for Free, Without Uploading ItRemove the background from a photo on your own device: the steps, which photos work best, how to check the edges, and why the file is a PNG. Free, no upload.6 min read
- PP Size Photo in Nepal: Size in cm, Inches and PixelsA PP size photo in Nepal is 35 × 45 mm (3.5 × 4.5 cm) on a white background. See it in inches and pixels, and when Nepali offices take the photo themselves.4 min read
- ESTA Photo Requirements: The Passport Page Photo and the SelfieESTA asks for a photo of your passport's data page, not a passport photo, and its website now asks for a selfie too. How to take both, and why uploads fail.5 min read
- USCIS Photo Requirements (2026): Which Forms Need Photos, and the 2 × 2 Inch RulesWhich USCIS forms still need two 2 × 2 inch photos, which take your photo at the biometrics appointment, and what policy alert PA-2025-29 changed.6 min read
- Glasses, Smiling and Hair in Passport Photos: The Rules for 26 DocumentsCan you wear glasses or smile in a passport or visa photo? The official rules on glasses, smiling, hair, ears and head coverings for 26 documents.7 min read
- Photo Rule Changes: Passport, Visa and Travel Permit Photo Updates Since 2024A dated list of changes to official passport, visa and travel permit photo rules since 2024, each with its official source, and our own rule updates.6 min read
- How to Make a Reel for Your Shop: Size, Length, Logo and MusicHow to make a reel for a shop: the 9:16 size, how long Instagram, WhatsApp and Shorts allow, where your logo goes, and which music is safe to use.6 min read