Convert image to PDF and set PDF resolution

There are 2 ways to convert image to PDF and set PDF resolution in Windows platforms. If you are interested in them, please keep reading this article.

Image to PDF Converter is main converting tool for this process, which contains 2 versions --- GUI version and CMD version, and both of them can help you convert image file to PDF file professionally with specified properties. For more info about this application, you can go to its official website at To convert image to PDF and set PDF resolution with Image to PDF Converter, please have 2 versions of Image to PDF Converter on your computer:

  • Click the following link, installer of Image to PDF Converter can be downloaded: Then, you can double click this installer, and follow setup wizard step by step till GUI version of Image to PDF Converter is installed successfully
  • Click the following link, then zip file of CMD version can be downloaded: So after you unzip it to your computer, CMD version of Image to PDF Converter can be used through calling “img2pdf.exe” later

Next, methods to convert image to PDF and set PDF resolution with GUI interface and command line are as below:


Please double click shortcut of GUI version, then click button of “Add Files” on GUI interface, and in pop dialog box of “Image2PDF”, please select one image, e.g., PNG and click “open”, then path of this PNG can appear in processing form, which means it is successful to add this image for this process. Moreover, to preview this image on GUI interface, please click this path:

interface of Imge to PDF Converter

Next, to set PDF resolution, please click button of “Setting”, then in pop panel, you need to click tab “Base Setting”, then in edit box of “PDF DPI Setting”, please input proper int as value of resolution, finally, please click “ok”, so this setting can be saved and this panel can be closed, too.

type DPI in edit box of "PDF PDI Setting" on setting panel

Finally, after you go back to GUI interface, please click “Make PDF” on GUI interface, then select “Convert one image into one PDF file” so that a dialog box named “save as” can be popped out, where you should select a targeting folder and click “save”, then PDF file of specified resolution can be produced.


To use command line to process your task here, please open command prompt window with steps below, for it is operating environment of CMD version of Image to PDF Converter: click “start” > choose “Run” on start menu > type “cmd.exe” and click “ok” in dialog box of “Run”.

After command prompt window is opened, please refer to the following example with illustration below to fulfill your process step by step:

g:\image2pdf_cmd3.2\img2pdf.exe –r 300 –o f:\outs\resolution.pdf h:\ins\resolution.png<enter>


g:\image2pdf_cmd3.2\img2pdf.exe is path of “img2pdf.exe”, which is typed for calling “img2pdf.exe”; –r 300 is parameter with int 300, which is typed for editing PDF resolution as 300 DPI, however, in the condition of no changes in resolution, you can type –r 0 and –r –1 in order to use default width and height of image and use DPI info of original image separately;–o is essential parameter to produce PDF file, which needs to be typed before targeting path; f:\outs\resolution.pdf is targeting path for saving PDF file; h:\ins\resolution.png is source path of PNG image, which is used for adding this image for this process; <enter> stands for one essential click on “enter” button in command prompt window, which is crucial to make this process started in command prompt window.

So by now, as you can tell, this is nearly an end of the article, which is mainly about how to convert image to PDF and set PDF resolution. Furthermore, if you have questions on this process, welcome to leave your comments here, so we can contact you as soon as possible based on those questions and give you proper technique support. 🙂

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