Cobalt Tools UploadReady

Upload-ready image tool

Resize Photo to 35x45mm

This preset creates the common 35x45mm ratio at 300 DPI dimensions. It helps with sizing only; always check the official photo rules for your application.

JPGPNGWEBPHEIC/HEIF best-effort
  1. 1. Select image

    Drop a file or choose one from your device.

  2. 2. Adjust preset settings

    Change KB, dimensions, crop or format if needed.

  3. 3. Download result

    Preview the new file before saving it.

Browser processing

35x45mm Photo

This creates a 413x531px file, the common 35x45mm size at 300 DPI.

Original preview

Upload a file to preview it here.

Result preview

Processed image appears here before download.

How to use this tool

  1. 1

    Upload a portrait photo.

  2. 2

    The image is cropped to the 35x45mm ratio.

  3. 3

    Download the JPG and verify it against your form rules.

Useful for

  • ID-style photos
  • Document portals
  • Print preparation

Preset settings

dimensions
413x531px
output
JPG
crop
35:45 ratio crop

Where are my files and text processed?

Processing takes place locally in your browser. Your selected files and text stay on your device during processing.

Is this tool free to use?

Yes. Use this tool for free, directly in your browser, without an account.

How do I save the result?

Use the download or copy action in the workspace once your result is ready.

Related UploadReady tools

These internal links point to nearby presets that solve similar upload-size, dimension or conversion tasks.

Search all tools