Microsoft Print to PDF software processes images in 600 x 600 dpi resolution to address a majority of user needs for image resolution.
With Tweak Microsoft Print to PDF software, you are allowed to select one or many options for the image resolution in Microsoft Print to PDF printer.
NOTE: 1200 x 1200 dpi is not supported by all Windows 10 releases. If any incompatibility issue is found, Tweak Microsoft Print to PDF gives you a warning message. To resolve the issue, it is highly suggested to upgrade your Windows 10 to the latest release.