📐 Image Canvas Extender

Extending adds canvas space around your image without changing the original photo. Your image stays the same size — we just add background space. Resizing would stretch or compress your image. This tool only extends canvas, so your original photo quality is preserved 100%.

Square posts: 1080×1080 (use our Instagram preset). Portrait posts: 1080×1350. Landscape posts: 1080×566. For Instagram Stories, use 1080×1920. Our tool lets you enter any custom dimensions to match your exact needs.

No! The original image is preserved at full quality and never stretched or compressed (unless you choose the Stretch position). Only the canvas background is added. You can also download in PNG (lossless) for maximum quality, or JPEG/WebP with adjustable quality settings.

This tool only extends canvas (makes it larger than the original image). To make images smaller, use our Image Resizer or Crop tool. The minimum canvas size is your original image dimensions — we never crop or cut your image.

LinkedIn company page posts: 1200×1200 (square) works best. LinkedIn article links: 1200×627. LinkedIn banner/background: 1584×396. Use our LinkedIn preset (1200×1200) or enter custom dimensions.

Absolutely! All processing happens locally in your browser using HTML5 Canvas API. Your images never leave your device — no uploads, no servers, no third parties. This makes it 100% secure for personal photos, client work, and any sensitive images.