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IMAGE RESIZER

Free Image Resizer

Adjust pixel dimensions of JPEG, PNG, and WebP images. Crop to standard ratios or resize by custom percentage.

Your image is processed in your browser and is not uploaded to our server.
Drag and drop your image here, or browse files Supports JPG, JPEG, PNG, and WebP

Local Browser Image Resizing

SudoGrep's free online image resizer helps you scale and adjust the width and height of JPEG, PNG, and WebP images. It is important to note the difference between resizing and compression: Resizing changes image dimensions (modifying the width and height pixels), while compression primarily reduces file size in kilobytes without altering the pixel counts. If you need to make the file size smaller for a portal, you can run it through our image compressor after resizing.

Pixels, Percentage, and Aspect-Ratio Locking

Our resizer allows you to scale dimensions using exact pixel parameters (width and height) or via percentage sliders. We highly recommend keeping the Aspect Ratio Lock active. Locking the aspect ratio maintains proportions, ensuring the image does not stretch, warp, or squash during scale transforms. This is essential for digital passport photos and document scans.

Resizing Signatures and Photos for Online Forms

Many official portals and application forms require specific dimension inputs (like 3.5cm x 4.5cm, which is roughly 413 x 531 pixels for passport photos, and 140 x 60 pixels for signatures). When preparing assets:

  • Check the form's exact pixel requirements first.
  • Use exact pixel inputs and keep the aspect ratio locked to preserve proportions.
  • Export to JPEG to maintain compliance with online form portals.
  • If the portal also imposes a strict file weight limit, check out our 50KB image compressor.

Frequently Asked Questions

What is the difference between resizing and compression?
Resizing changes image dimensions (modifying width and height pixels), while compression primarily reduces file size (kilobytes) without changing the pixel counts.
What is Aspect Ratio Lock?
It is a constraint that ensures when you modify the width, the height calculates automatically based on the original width-to-height ratio to prevent pixel stretching or distortion.
How do I resize a signature for online forms?
Select your signature image, crop any white space if needed, enter the portal's target pixels (e.g. 140px x 60px), check the aspect ratio lock, and download.
Are my images private?
Yes. All canvas scaling operations are executed locally in your web browser. No data is uploaded to SudoGrep.

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