QuickResizer User Guide

Last updated: June, 2022


QuickResizer is a user-friendly tool for resizing a single picture or several thousand pictures. Smaller picture files are ideal for sharing via social media, email, blogs, websites, cell phones, and other mobile devices. The built-in converter handles the input and output of high quality JPEG, GIF, BMP, PNG, and TIF picture files. Our customers have used QuickResizer to accomplish a variety of personal endeavors. This User Guide is designed to help you achieve yours.

Before installing QuickResizer, ensure that your system meets the minimum requirements.
Supported Hardware
Intel/AMD processor.
Supported Operating Systems
Microsoft Windows 11
Microsoft Windows 10
Microsoft Windows 8
Microsoft Windows 7
Microsoft Windows Vista
Microsoft Windows XP

1. Go to the QuickResizer page.

2. Click on the "Download Free Trial Now!" button.

3. Double-click to run the downloaded file QuickResizerSetup.msi.

4. You may receive a Security Warning. Click Run to continue.

5. You might be prompted to install Microsoft .Net Framework if it's currently not installed. You will need to be an Administrator of your computer to install .Net Framework.

6. Follow the rest of the installation steps to install QuickResizer.


The Product License form appears when QuickResizer starts.

Trial Version

If you wish to try out QuickResizer, click Close to continue. You will be able to use QuickResizer for 30 days for free.

Full Version

You will need to purchase a license after the 30 days free-trial period.

  1. Purchase a QuickResizer license now.
  2. Once purchased, you will receive a User Name and User Key via email.
  3. Enter the User Name and User Key into the appropriate boxes on the Product License form.
  4. Make sure that you are connected to the Internet and then click Register.
  5. The registration process cannot be initiated if you are not connected to the Internet. If you receive an error during registration, try turning off any firewalls. After registration, you can turn them back on.
  6. You may also experience problems if either you or your ISP (Internet Service Provider) uses a proxy server. In this case, the registration screen will prompt you for the proxy server name and port number. Enter a user name and password as required by the proxy server.



If QuickResizer does not start automatically after installation, you can look for it using the magnifying glass icon located on the lower left corner of your desktop (right next to the Windows icon). Click on the magnifying glass icon and type QuickResizer. The QuickResizer icon should be displayed and you can click on it to run it.

You should also be able to run QuickResizer from the shortcut created on your desktop:

If all else fails, you can locate the file by typing this path into the File Explorer:


There should be a file called QuickResizer.exe in the folder for you to click on. You can also right-click and create a shortcut of the exe file and place it on your desktop.


The Main Screen appears. You are now ready to use QuickResizer.

If you wish to resize all pictures within a folder:
  1. Choose Select Entire Folder.
  2. Click the Select Folder With Picture Files button.
  3. The Browse window appears allowing you to find the desired folder.

  4. Once the folder is selected, click OK to continue.
    1. Only pictures within the specified folder will be resized. Sub-folders are ignored (unless if you have the Process Sub-folder Images option set to "YES").
  5. Proceed to Resize Pictures.
If you wish to resize only certain pictures within a folder:
  1. Choose Select Individual Files.
  2. Click the Select Individual Files button.
  3. The Open window appears allowing you to find the folder containing the desired pictures.
    1. You may select multiple pictures by holding down the Ctrl key while clicking on each of the desired file names.

  4. Once selected, click Open to continue.
  5. Proceed to Resize Pictures.
You may select pictures by dragging them from Windows Explorer and dropping them into QuickResizer.
  1. Start QuickResizer.
  2. Start Windows Explorer and find your pictures.
  3. You may select multiple pictures by holding down the Ctrl key while clicking on each of the desired file names.
  4. Click and hold down the left mouse button on the selected pictures.
  5. While holding down the left mouse button, drag the pictures from Windows Explorer and drop them onto QuickResizer’s Main Screen by releasing the left mouse button.
  6. The Main Screen will display the number of files selected. Hover over the number to see a list of the selected file names.

  7. Proceed to Resize Pictures.

Another way to run QuickResizer is to right-click in File Explorer:

  1. Right-click on a picture file (jpg, png, gif, ect) and choose "Open with", then "Choose another app":

  2. See if you can find QuickResizer on the list. If it is on the list, choose it. If not, scroll down and click on "More apps"

  3. If you can find QuickResizer on the list, choose it. If not scroll down and click on "Look for another app on this PC". You can then browse to the location of the QuickResizer.exe file, which is usually located in


  4. Once it's selected, next time you can just right-click on the image file and choose "Open with" and QuickResizer will be available on the list:

  5. QuickResizer will automatically be opened with the selected file(s) ready to be resized.

  1. Set the Resize Options
    1. If you wish to resize your picture(s) by a specific percentage:
      1. Choose Resize by Percent.
      2. Enter the desired percentage (1-500).
      3. If you wish to automatically rotate the pictures without changing their dimensions, you can just set the percentage to 100.
    2. If you wish to resize your picture(s) by a specific pixel size:
      1. Choose Resize to Fixed Size (Pixels).
      2. Enter the desired width (1-10000).
      3. Enter the desired height (1-10000).

  2. Click the Resize Pictures button.
    1. A progress bar will display the number of files being resized.
    2. The original pictures are not modified during the resizing process (if you have the Overwrite Original Images set to "NO"). The resized pictures will be stored in subfolder called "Processed" located under the folder containing the original pictures.
    3. Once complete, Windows Explorer automatically launches and displays the resized pictures.
    4. QuickResizer resizes pictures in proportion to the original width and height. It will not stretch pictures out of proportion. Any leftover space will be replaced with a white background. You may change this background color as explained in the Advanced Options section.
    5. QuickResizer automatically saves your current settings and remembers them the next time you start the program.

If your main purpose is to shrink JPG pictures to a smaller size, QuickResizer is set and ready to go. If you wish to work with other file formats or tweak additional settings, you will need to use the Advanced Options. To do so, click Options on the Main Screen and then select Advanced Options.

By default, QuickResizer is set and optimized for processing JPG/JPEG files. You will get the best picture quality when both your input and output files are JPG/JPEG format. Nevertheless, QuickResizer supports five graphic file formats:
  • GIF
  • PNG
  • BMP
QuickResizer is not case-sensitive and recognizes different file format naming conventions (JPG/JPEG, TIF/TIFF). Please note that QuickResizer doesn't support resizing of multi-page TIFF or animated GIF images. It only resizes the first frame of the image. The rest of the frames will be lost.
By default, the Output File Suffix is empty, meaning your resized picture files will have the same file names as your original picture files. You can add suffix to your file name if you like. For example, if you set the File Suffix as _resized, a file called Vacation.JPG will be resized into a new file named Vacation_resized.JPG.
By default, quality is set to High. While pictures created in Low and Medium require less disk space, this benefit is typically offset by the reduction in picture quality. For most purposes, it is recommended that this option be set to High.
After pictures are resized, QuickResizer will automatically start Windows Explorer and display the new pictures within the Processed folder. By default, this option is set to "YES". If you would like to disable it, simply select "NO".
If you have images in sub-folders that you would like to process, you can select "YES". This saves you time from having to point to each sub-folder and process the images there separately. It will also process any images in the root folder as well. By default, this option is set to "NO".
If you would like to overwrite original images, you can select "YES". By default, this option is set to "NO". When it's set to "NO", a new folder called "Processed" will be created to store the processed files. Your original images stay intact.
QuickResizer resizes pictures in proportion to the original width and height. It will not stretch pictures out of proportion. Any leftover space will be replaced with a white background. To change the background color, click the Modify Color button. A color palette appears. Select the desired color and click OK. QuickResizer will save and remember this setting for future use.

Your User Name and User Key may only be used once. If you need to move your license to another computer, you must first unregister it.
  1. Ensure that you are connected to the Internet.
  2. Click Help at the top of QuickResizer’s Main Screen.
  3. Click License Information.
  4. Click on the Unregister button to remove the license from your computer.

  5. You may now re-register QuickResizer on a different computer using the same user name and user key.
In the event that your hard drive crashes before you get a chance to unregister QuickResizer, you can request a license reset and we will reactivate the license for you.
To find out how our existing customers are using QuickResizer and how pleased they are with our product, please read QuickResizer's Testimonials.
If you would like to submit your testimonial after using our product, please submit your testimonial here.

Technical support and/or sales questions may be directed here. We also welcome any suggestions you might have for further enhancing our products.

Thank you for your interest in QuickResizer.
Check out other great products here.