Screenshots and graphics as a document
PNG is the usual format for screenshots, charts and designs, but many forms and offices ask for a PDF. Converting keeps every image sharp, and combining them into one file makes them easy to send and print in order.
If your PDF ends up too large for an email or portal, run it through Compress PDF afterwards, or convert your PNG files to JPG first, which makes photos much smaller.
Page size and order
Each image becomes one page. Use the move buttons to change the order before you download. A standard page size such as A4 or Letter makes the PDF print neatly, while fitting the page to the image keeps the exact proportions of each screenshot.