DPI Resolution

With reaConverter you can easily change DPI of images in bulk, convert between formats, optimize for print or web, and batch process files in seconds.

Adjust DPI of images (72dpi to 1200dpi) for print or digital use

The DPI of an image defines the number of "dots per inch" and it's usually an indicator of its quality. The higher the DPI, the better the image quality. Depending on what you plan to do with an image, adjusting the DPI can help customize its size and resolution.

For example, if you plan to print the image, then opting for a higher DPI is the best thing to do. If, however, you want to post it online on a website or on a social network, or send it by e-mail, a standard resolution of 72 DPI will be enough.

1. Open Images

Add all the image files you intend to convert or change the DPI to. You can insert them in the reaConverter window using the drag-and-drop tool or by manually selecting them from a local folder.

2. Set new DPI

Go to the Menu button and then press Saving settings → Additional saving settings

Here you will find the DPI tab, where you can opt for using the DPI values of the original image files during conversion, or for entering new values for the output files.

3. Save the Result

In the saving options, you can pick the location for your newly edited images.

Then click the Convert button and your new images will soon be ready to use.

Video Tutorial

With reaConverter preserving or changing the DPI only takes a few seconds when you do batch image conversion.

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Set new DPI with command-line tool

You can also change DPI using command-line interface, either manually or through automated scripts. reaConverter Pro includes a command-line tool called cons_rcp.exe — an advanced feature designed for professional use, available exclusively in the Pro edition.

Changing DPI example:

cons_rcp.exe -s "C:\Path_to\input_file.jpg" -o "C:\Path_to\output_file.jpg" -dpi_option 2 -dpi_x 300 -dpi_y 300

Manual

-dpi_option
  where value = 1 if you want to copy information about dpi resolution from original file, = 2 if you want to set your own values for dpi resolution
-dpi_x
  where value = horizontal resolution for converted files (from 1 to 10000 dpi)
-dpi_y
  where value = vertical resolution for converted files (from 1 to 10000 dpi)

You are welcome to contact our technical support when you have any questions about reaConverter.

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reaConverter offers advanced batch processing, editing, and conversion for virtually every image format — with unmatched precision and speed.