300 DPI changer

Change Image DPI to 300 Online

Batch change JPG DPI metadata to 300 DPI without changing the pixel dimensions of your images.

ENGINE-ENFORCED · MAY FAIL CLEARLYBatch Img Tools enforces the configured deterministic constraints. It does not promise every combination is mathematically reachable; when constraints conflict, it fails clearly instead of silently changing another requested constraint.
300 DPI presetThe editor opens with 300 DPI already configured.
Pixel-safeChanging DPI metadata does not invent extra image pixels.
Batch outputApply the same DPI setting to many JPG images at once.
IMAGE TOOLReady when you are
Standard engineCore processing local
SAVED SETUPUnsaved setup
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Settings

Adjust only what you need

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READY TO EXPORT0 sources × 0 outputs = 0 filesChoose images to begin

Set 300 DPI metadata without confusing DPI with pixel resolution

DPI is print-density metadata. A 1200×800 image does not become a higher-resolution image simply because its DPI field changes from 96 to 300. Batch Img Tools keeps the pixel dimensions unless you explicitly resize them.

The 300 DPI value is written into JPG metadata during export. You can also resize, compress, rename or add ownership metadata in the same output if the final delivery requires it.

What you can do

  • Set 300 DPI or another DPI value
  • Keep original pixel dimensions
  • Combine DPI with resize, compression and metadata
  • Export a whole batch in one ZIP

One rule. Every file. One download.

Add your images above and run the whole batch in one pass — free, private, and exported as a single ZIP.

Explore more batch tools →