Convert PPSX to JPEG

Users searching for Office file to image conversions first have to generate a picture of their document, which can be done, for example, by the print screen method. Alternatively, they can export pictures directly saved inside the office documents (such as .docx, .pptx, .ppsx, .xlsx etc.).

There are certain utilities capable of executing both tasks, but as mentioned above, it can also be done without using any 3rd party software. Use the PrintScreen button, paste the image into the Paint program, crop it and save it as an image file (such as .jpg, .jpeg, .png etc.). Save individual slides from presentations as separate image files. 

When it comes to images saved inside documents, latest XML-based formats are just renamed ZIP files. Simply rewrite the extension, and extract the contents. Inside you will find a media folder containing the images you're looking for. Simply copy the images out.

Specialized software and converters make all of this much simpler, and if you save your document as an image in a program that supports this feature, you will also receive better results. You won't have to manually crop out edges for instance, and so on.