Image size guides for pixels, ratios, formats, and requirements
Use a reviewed guide when the job needs more than a preset: compare aspect ratios, choose a file format, protect a social safe area, or calculate print and identity-photo dimensions.
Choose the format that fits the image and delivery channel.
A reviewed comparison for quality, file size, transparency, and compatibility before you export.
Keep critical Story content clear of interface overlays.
Use the reviewed safe-area guidance before placing text, logos, and calls to action in a vertical frame.
Prepare identity photos and convert print measurements with confidence.
Passport, visa, and measurement references pair plain-language guidance with the formulas needed to set a precise pixel size.
Passport photo requirements (background & rules)
Passport photo requirements: background, lighting, head size, and size conversions. No upload.
Read guide →Resize passport photo (photo size guide)
Passport photo size guide, DPI tips, and resize online with local processing (no upload).
Read guide →Resize visa / ID photo (size guide)
Visa/ID photo size guide with DPI tips and online resizing (no upload).
Read guide →Resize image in cm or inches (convert to pixels)
Convert cm/inches to pixels using DPI, then resize online with one-click presets (no upload).
Read guide →PX to CM converter (pixels to centimeters)
Convert px to cm using DPI, plus quick formulas and examples. No upload.
Read guide →Know the target size already?
Browse the preset library or open the resizer directly when you do not need a reference guide.