Guides to photo, PDF and upload sizes
Short, practical guides to making photos and PDFs smaller, converting iPhone photos, and meeting the size rules of passport, visa and other online forms, without uploading your files anywhere.
- Photos3 min readConvert HEIC to JPG on any deviceConvert iPhone HEIC photos to JPG on iPhone, Mac, Windows 10 and 11 or Android, or in your browser without uploading them, and stop new photos saving as HEIC.Read the guide
- Photos4 min readMake a photo smaller in file sizeMake a photo smaller to email or upload on iPhone, Android, Mac or Windows: the right pixel size, quality setting and free tools, from MB down to KB.Read the guide
- PDFs4 min readMake a PDF smallerShrink a PDF to email it or meet an upload limit: Preview on Mac, Word and Print to PDF on Windows, iPhone, and how to get scans under 100–500 KB.Read the guide
- Passports & visas4 min readPassport and visa photo sizesOfficial digital photo sizes for the US visa (DS-160), US passport renewal, Canadian passport, Canada PR card and UK passport, and how to meet them.Read the guide
- Photos3 min readPixels, inches, cm and DPI explainedHow many pixels a 4×6, 5×7, 8×10 or 2×2 photo needs at 300 DPI, how to convert inches or cm to pixels, and what file size and DPI really mean.Read the guide
- Forms3 min readPhoto rejected? Reasons and fixesWhy visa, passport, exam and job application forms reject photos: wrong pixels, file size or format, edits, background or glasses, and how to fix each one.Read the guide
- Photos3 min readIncrease photo size in KBFix “file size should be at least 20 KB” for photos and signatures: raise the JPG quality, use the right pixel size, and know what not to do.Read the guide
- Signatures3 min readResize your signature for a formSign, scan, crop and resize your signature to the file size and pixel or cm size an online form asks for, such as 10–20 KB at 140 × 60 pixels.Read the guide
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