There are restrictions, as you'll find in many of the best free PDF editors. Chiefly, you're locked to two tasks per day - so ...

Simply use a free PDF app from a commercial company ... and removing the file's metadata. Similar to Adobe Acrobat, PDF24 ...

Adobe Acrobat Pro DC software allows you to view, edit, create, manipulate, convert, and manage files in Portable Document Format (PDF). Adobe site license: There is no cost associated with the Adobe ...