원클릭툴OneClickTool
KO

Batch DPI and pixels

Image DPI Changer

Change DPI metadata and pixel dimensions for multiple images, then export as JPG or PNG.

Drag images here or click to upload

JPG, PNG, WebP, HEIC · up to 10 files · 20MB each · paste supported

Copy an image and press Ctrl+V to paste it here

Processed in your browser · no server upload

1. Choose2. Convert3. Download

Core Options

Adjust only what you need.

Common DPI

DPI metadata is written into JPG and PNG outputs. Pixel dimensions are controlled separately with width and height.

Advanced Settings
Tokens

Examplesample-image.jpg

{name}=source filename, {index}=number. Leave blank to use the source filename.

Upload at least 1 image to run this tool.

Upload an image to compare the original and result here.
Uploaded files and conversion results will appear here.

Usage criteria

DPI Changer: how to review the result

Review what the tool changes and how to check the output before using it elsewhere. Comparing your inputs with the destination requirements helps prevent an otherwise valid result from being rejected.

What the result means

Prepare images for print, ID photos, forms, and document uploads that ask for 300DPI or 600DPI. DPI metadata and pixel dimensions can be set separately before batch export.

Batch change image DPI and pixel size

Recommended workflow

  1. 1Upload images.
  2. 2Choose the target DPI and pixel dimensions.
  3. 3Select JPG or PNG output.
  4. 4Run conversion and download the results.

Checks before finishing

After processing, review 72-600 DPI presets, JPG/PNG output, Pixel resize, image DPI changer, change photo DPI before using the result.

  • 72-600 DPI presets
  • JPG/PNG output
  • Pixel resize
  • image DPI changer
  • change photo DPI

Processing method

Image output depends on source dimensions, file format, compression quality, and transparency. Photos, logos, and text-heavy graphics can react differently to the same setting, so review both pixel dimensions and visible quality.

How files and inputs are handled

Core processing runs in the current browser whenever possible. OneClickTool does not store original files or tool inputs on its own server. Review the preview and output values before downloading or submitting an important result.

Frequently Asked Questions

Does changing DPI also change pixel dimensions?

No. DPI is print-resolution metadata. Pixel dimensions are controlled separately with the width and height fields.

Can both JPG and PNG store DPI?

Yes. JPG results use JFIF density metadata, and PNG results use pHYs physical resolution metadata.

Can I change DPI for multiple images at once?

Yes. Upload multiple images, set one DPI and pixel rule, then download individual files or a ZIP.

Supported Scope

Upload JPG, PNG, WebP, or HEIC images, then write DPI metadata into JPG or PNG outputs while adjusting pixel dimensions.

DPI is print metadata and is separate from screen pixel dimensions. WebP DPI export is not currently supported.

  • image DPI changer
  • change photo DPI
  • 300 DPI image converter
  • batch DPI change