Resize Image Online for Free

How to Resize an Image Online

1. Upload your image — The original dimensions are shown automatically after selecting.
2. Choose resize mode — Enter exact pixel dimensions or a percentage (e.g. 50% to halve the size).
3. Lock aspect ratio — Keep this checked to prevent stretching. Change width and height updates automatically.
4. Click Resize Image — Download your resized image in the original format.

Common Resize Sizes

• 1920 × 1080 — Full HD wallpaper, YouTube thumbnail
• 1200 × 630 — Facebook and LinkedIn post image
• 1080 × 1080 — Instagram square post
• 800 × 600 — Standard web image
• 300 × 300 — Profile picture, avatar
• 150 × 150 — Thumbnail, favicon source

Frequently Asked Questions

Does resizing an image reduce its quality?
Making an image smaller (downscaling) does not visually reduce quality. Making it larger (upscaling) can cause blurriness since new pixels are estimated. For upscaling, use our Image Upscaler for better results.

Will the file format change after resizing?
No. A JPG stays JPG, PNG stays PNG. The format is preserved exactly.

What is the maximum image size I can resize?
Up to 10MB per file. Width and height can be set up to 10,000 pixels.

Does the resizer add a watermark?
No. FastPDFEdit never adds watermarks to any processed image.

Related Tools

• Compress Image — Reduce file size after resizing
• Convert Image Format — Change JPG to PNG, WebP, etc.
• Upscale Image — Increase resolution with sharpening
• Bulk Compress — Compress multiple images at once