DPI Converter Guide
Reference for using DPI Converter with supported inputs, browser limits, common mistakes, and related AscendLab image tools.
Quick answer
Use Image DPI Converter to understand how pixel dimensions translate to print size. Browser canvas export cannot reliably write DPI metadata in every format, so treat this as print planning plus re-export, not a prepress editor.
What this tool does
Estimate print size from pixels and target DPI, then export a browser-side image copy with practical print-planning notes.
Supported input
- Pixel-to-print-size estimates
- Target DPI planning
- Browser-readable images
Not a fit for
- Guaranteed embedded DPI metadata editing
- Professional prepress workflows
- RAW or layered files
Data handling and processing behavior
Processing is handled in the browser for this tool based on the current public implementation. Avoid using sensitive images unless you have reviewed the implementation and your own data handling requirements.
Step-by-step use
- Open DPI Converter.
- Choose a browser-readable local image or provide the required source input.
- Review the supported formats, file size guidance, and output settings.
- Generate the output or metadata summary.
- Download the result or copy the summary into the next workflow.
Practical examples
Print check. A 3000 x 2400 image at 300 DPI prints about 10 x 8 inches.
Screen asset. A 1200px screenshot may be fine on web but small for print.
Limit. Use dedicated image software when embedded DPI metadata must be exact.
Common errors
Confusing DPI with pixels. DPI changes print interpretation; it does not create new detail.
Ignoring target size. Always check pixels, desired print size, and viewing distance together.
Assuming browser export writes DPI. Browser encoders vary and may not preserve or write DPI metadata.
Limits
- 25MB recommended limit.
- Browser memory and image decoder support can affect large files.
- Canvas-based outputs can change metadata, color profile behavior, and compression.
- Keep the source image when exact fidelity, audit trails, or metadata preservation matter.
Next steps
- image resizer — continue the image workflow
- image metadata inspector — continue the image workflow
- image compressor — continue the image workflow
- image format converter — continue the image workflow
- aspect ratio calculator — continue the image workflow