Free Online DPI Converter

Batch modify image DPI resolution in one click, supports JPG, PNG, WebP and other popular formats, up to 50 images at a time, efficient and convenient.

What is DPI?

DPI (Dots Per Inch) is an important metric for measuring image resolution, directly affecting the display and print quality of images

DPI Basics

DPI (Dots Per Inch) represents the number of pixels per inch. The higher the DPI, the clearer and finer the image, but the larger the file size.

Choosing the appropriate DPI is crucial for different purposes: web display typically uses 72-96 DPI, while professional printing may require 300-600 DPI.

Our tool can help you easily adjust image DPI, whether to reduce file size or improve print quality.

72
DPI
Web Display
150
DPI
Standard Print
300
DPI
High-Quality Print
600
DPI
Professional Print

DPI Use Cases

Different DPI settings are suitable for different use cases

72-96 DPI

Web display, social media sharing, email attachments

150 DPI

Home printers, office documents, standard photo printing

300 DPI

High-quality photo printing, magazine printing, commercial use

600+ DPI

Professional printing, artwork reproduction, large format printing

Features

Why choose our DPI converter

Batch processing

Process multiple images at once, greatly improving work efficiency

Privacy & Security

Images are not saved; they are deleted immediately after DPI conversion

Completely free

No registration required, unlimited usage, completely free

Multi-format support

Supports common image formats like JPG, PNG, WebP

Custom settings

Supports preset DPI and custom DPI values

Easy download

Supports single and batch downloads

FAQ

Common questions and answers about DPI conversion

What is DPI? Why adjust DPI?

DPI (Dots Per Inch) represents the pixel density per inch. Adjusting DPI optimizes image display for different uses: 72 DPI for web reduces file size, 300 DPI for printing ensures clearer quality.

Which image formats are supported?

Currently supports JPG/JPEG, PNG, and WebP formats. These are the most common image formats, covering most use cases.

Is there a file size limit?

Each file can be up to 10MB, and up to 50 images can be processed at a time. This limit ensures good processing speed and user experience.

Will my images be stored on the server?

No. Your images are only used for this conversion process. They are not stored on the server and are immediately deleted after conversion to ensure data safety.

How to choose the right DPI value?

72-96 DPI: Web display, social media 150 DPI: Standard printing, office documents 300 DPI: High-quality photo printing 600+ DPI: Professional printing, artwork

Will the image quality decrease after conversion?

Adjusting the DPI does not affect the pixel count of the image; it mainly changes the image's metadata. It neither decreases nor increases image quality.

Can I customize the DPI value?

Yes, in addition to the common presets of 72, 150, 300, and 600 DPI, you can also enter any DPI value from 1 to 2400 for custom conversion.

What if the conversion fails?

The tool provides a retry feature. If a single file conversion fails, you can click the "Retry" button to process it again. For multiple failed files, you can use the "Retry Failed" function to batch process them.

Start Using the DPI Converter Now

Free, Fast, and Secure Online DPI Conversion Service

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