This could lead to blurry images. In my experience, this problem only arises if the original image (with no effects) is used in a Word document of the same dimensions. When I use PowerPoint to create a PowerPoint presentation which requires the use of images that are very high resolution, the quality of the presentation does not seem to benefit from such image optimization. However, when I use an alternative layout that does not use PowerPoint image templates, but that uses the Word presentation design. PowerPoint allows the images to be upsized and resized up to 4 times and there is no issue with blurry images. This is likely to be due to the fact that PowerPoint is still capable of handling high resolution images. Here are screenshots of the two PowerPoint presentations. The first photo shows an original PowerPoint file with the original PowerPoint template. This file was made for display on my screen (displayed in a small window) and did not require that the image be modified. In the second example there is a small PowerPoint slide that I added to the slide. What can I do? The most likely cause is that PowerPoint has its own image processing capabilities. If you need to edit the images in a PowerPoint file (either to change their dimensions or to add or remove effects), you can use PowerPoint's Export and Preview features. First you must go to File→Export… and search for PowerPoint. If the file you're trying to export is PowerPoint 2023 or PowerPoint 2013, you need to select your operating system from the list of possible operating systems. In the last column, click on “Options…” and make sure the options are set to “Preview only” for file types. If you're happy with those settings, click the “Export to” link in the next column. Click OK. That's it, PowerPoint will export the image and save the file for your inspection later. If you try exporting a PowerPoint file that contains multiple images, you will be asked to select all images from each file. This isn't necessary for the second example. If you have difficulty viewing one of the images in PowerPoint, try saving the document as a .pdf file. This is particularly useful if you're having troubles exporting an image to PDF that contains a lot of text. In the first examples there are some oddities. The word balloons are a bit too big for a word.