Facebook image dimensions
| Image type | Dimensions |
|---|---|
| Cover photo (desktop) | 820×312 px |
| Cover photo (mobile) | 640×360 px |
| Profile picture | 180×180 px (displayed 170×170) |
| Post image | 1200×630 px |
| Event cover | 1200×628 px |
| Story | 1080×1920 px |
Cover photo safe zone
Facebook crops cover photos differently on desktop vs mobile. Keep important content in the centre of the image to ensure it's visible on both. Resize with PhotoResizer.in and test on both devices after uploading.
Technical Verification & Standards Compliance for Digital Submissions
When uploading photographs, signatures, or official records to government portals, visa processing systems, or recruitment boards, strict automated validation scripts evaluate both visual clarity and physical file parameters. Minor errors—such as non-standard aspect ratios, improper pixel dimensions, high compression artifacts, or unstripped EXIF headers—frequently trigger instant system rejections.
Image Dimension & Aspect Ratio Math
Official forms specify exact physical measurements (e.g., 3.5cm × 4.5cm) or pixel boundaries (e.g., 350×450px). Converting physical units into digital resolution requires applying exact DPI scales: Pixels = (Millimeters / 25.4) × DPI.
Local WebBrowser Compression Engine
PhotoResizer.in uses client-side HTML5 Canvas and WebAssembly algorithms to compress image streams down to specific KB limits (10KB, 20KB, 50KB, 100KB, 200KB) entirely inside your web browser. Visual data never leaves your device.