PDF files are a popular format for distributing electronic documents online. You can set a PDF how to resize pdf document size’s print size.
Although created and owned by Adobe, the PDF format has since been made available as an open standard, so you can open and view these types of files using a variety of free programs. Resizing a PDF document to fit an A4 page is generally a bit trickier, as the free Adobe Reader software cannot edit the files. The easiest way to resize a PDF to A4 is to print it in the correct format, but for a digital conversion, you need additional software. Double-click the PDF file you want to resize to open it with the default reader installed on your computer.