What happens to your image in the browser

1. Choose the requirement

Start with the official upload instructions, not a preset name. Record the required width, height, file format, and maximum file size. Presets are starting points for common dimensions; they are not official government specifications and may not match every portal.

Use a preset when its numbers match the form. Use custom dimensions when the portal gives different values. The custom tool accepts dimensions in the URL so a saved link can reopen the same starting configuration.

2. Crop before resizing

The crop frame uses the target aspect ratio. Moving the frame changes which pixels remain; it does not stretch the subject. After the crop is selected, the editor maps that region to the exact output width and height with Canvas image smoothing enabled.

This order matters. Resizing a portrait with the wrong ratio can make a face look wider or taller. Cropping first preserves the intended framing, while the final dimensions determine the file properties that the portal checks.

3. Transform and compress locally

Rotation and flipping are applied to an off-screen Canvas before the crop is rendered. JPG and WebP exports can be compressed toward the selected KB target by testing image quality values. PNG exports preserve lossless image data but do not use the JPG/WebP quality search.

A target size is not a promise that every image will look equally sharp. A detailed document or noisy photograph may need more compression than a simple signature. If text or facial details become unclear, start again from the original image instead of repeatedly compressing an already-small download.

4. Create a PDF when the portal asks for one

The Image to PDF converter loads each selected image in the browser, normalizes it to a JPEG data URL, and places it inside an A4, Letter, or original-size page while preserving its aspect ratio. Combined mode creates one page per image; separate mode creates one PDF per image.

A PDF is a container, not an image-quality repair tool. Crop, straighten, and check readability before converting. For multi-page submissions, confirm the page order and orientation before downloading.

What stays local and what does not

During normal editing and conversion, the selected image files are read and processed by your browser. They are not sent to ImageCropAndResize for conversion. The website can still receive normal page requests and may use hosting logs, analytics, or advertising services as described in the Privacy Policy.

Once you download a result, you decide where to upload it. Review the destination portal's privacy policy and instructions before submitting personal photos, signatures, identity documents, or certificates.

Final verification checklist

• Compare width, height, format, and file size with the official instructions.
• Open the downloaded file and check that it is sharp, upright, and not stretched.
• Confirm faces, signatures, document edges, seals, and text are still visible.
• Use the portal's own preview and error message as the final acceptance check.