how to make a pdf multiple pages?
['Open Adobe Acrobat.', 'Choose Tools > Combine Files.', 'Click Combine Files > Add Files to select the files documents to compile.', 'Click, drag, and drop to reorder the files and pages. Double-click on a file to expand and rearrange individual pages. ... ', "When you're done, click Combine Files.", 'Save the new compiled document.']