I get asked all the time for help with image manipulations, PDF changes, and various file conversions. I’ve found the perfect spot for all or at least most of the tricks we need.
Check out https://tools.techjunkie.com
You can rotate PDFs, combine two PDFs in to one, convert images (png, jpg, svg,etc), convert PDFs to Powerpoint, and more.
Ever wanted to capture an entire webpage to an image or PDF for later reference. They have that tool too!