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.
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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