Frequently Asked Questions
Answers to Common Questions about DPI Conversion
What is DPI and Why Adjust It?
DPI (Dots Per Inch) refers to pixel density per inch. Adjusting DPI helps optimize image display for different uses: 72 DPI for web reduces file size, while 300 DPI for print delivers clearer results.
Which Image Formats Does the DPI Converter Support?
Currently supports JPG/JPEG, PNG, and WebP formats. These are the most common image formats covering the majority of use cases.
Is There a File Size Limit?
Each file can be up to 10MB, and up to 50 images can be processed per session. This limit ensures good processing speed and user experience.
Will My Images Be Saved on the Server?
No. Your images are only used for this conversion. The server does not store them and they are immediately deleted after conversion, ensuring data security.
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
How to Use the DPI Converter to Adjust Image Resolution?
After uploading images, select the target DPI or customize a DPI value, then click the batch convert button to complete the adjustments.
Will Changing DPI Affect Image Size?
Adjusting DPI does not change the number of pixels in the image; it primarily modifies the image's metadata. It neither reduces nor improves image quality.
Can I Customize the DPI Value?
Yes, in addition to the common presets (72, 150, 300, 600 DPI), you can enter any DPI value between 1 and 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 reprocess it. For multiple failed files, use the "Retry Failed" option to batch reprocess them.
What is the difference between DPI and pixels?
Pixels represent the number of dots in an image and determine its dimensions; DPI indicates dots per inch in printing, mainly affecting output sharpness.
Does it support batch upload and download?
Supports batch upload processing with up to 50 images at a time. After conversion, you can download them all in one click for convenience and efficiency.
Does the DPI Converter support mobile devices?
Fully supported: mobile, tablet, and desktop can all be used. No installation is required—just upload your image to complete the conversion.
Can the converted image be saved in different formats?
Currently, the converter retains the original image format. To convert to JPG, PNG, or other formats, please use a separate format converter.
Does it support PNG images with transparent backgrounds?
Supports processing PNG images with transparent backgrounds. After conversion, the transparency will remain unchanged without any filling.