How to Compress a Photo
Step 1: Open the digital photograph that you want to compress in Paint Shop Pro.
Step 2: From the File menu on Paint Shop Pro’s main toolbar, choose Save As. In the Save As window that appears on your screen, navigate to the folder where you want to save your compressed photograph. Select JPG JPEG from the Save as type drop down list. You can also specify a new name for the photo in the File name field if you like. (Click the image below for a larger view.)
Step 3: Next, click the Options button.
Step 4: In the Save Options window, first choose which Compression Factor you would like to use. You can do this by sliding the bar in this area of the screen or by typing in the exact factor. Note here that higher values will result in smaller files sizes, but the quality of the compressed file will suffer. It’s standard to use a compression factor of 20. This figure will result in a very noticeable size reduction of the file while maintaining a fairly high level of quality.
There are other options that you can modify in this window, but for now let’s keep the defaults for these categories. Click Run Optimizer to continue.
Step 5: Next, the JPEG Optimizer window will appear on your screen. There are a lot of options that you can modify in this window, but for the most part, we’re just going to accept Paint Shop Pro’s defaults. One thing that is helpful is that you can see a Before and After image of the photo in the Preview area. You can use this as a guide to make sure that your compression factor isn’t too high by judging the quality of the preview. If it is, you can still make adjustments in this window.
Another thing to note here are the file sizes given for both the Uncompressed and Compressed versions of the photograph. If you’re trying to get the photo to be under a certain size, you can use these numbers to help determine if you need to set the compression factor a little higher. As you can see in the screenshot above, using a compression factor of 20 doesn’t seem to change the visible quality of our photo much at all, yet it will shrink the file from over 20 MB to one just over 1 MB in size.
When you’ve finished here, click OK to continue. You’ll be returned to the Save As window where you’ll once again have a chance to enter a different name for the compressed version of the file. Click Save when finished, and you’ll be returned to the original photo in Paint Shop Pro.
Looking for more tips and tricks? Browse through the Digital Photography Channel's collection of Paint Shop Pro tutorials, designed for users of all levels.