GuidesPDF
How to merge PDF files in the page
Combine files in the order you choose, leave pages out, and know what does not survive the copy.
Merging copies pages into a new document, in the order you set. Click a page to leave it out. Drag a page to move it, or move a whole file so its pages stay together.
What is kept
Visible page content is copied. Interactive features such as form fields, bookmarks and comments are not guaranteed to survive. An encrypted file has to be unlocked with the password you were given before it can be merged. The files stay in memory on your device and disappear when you close or reload the tab.

