SoftMaker.com

My fondness for PDF files for some of my documents was the cross platform compatibility and also the difficulty of editing them. I would like to think my documents could not be altered. I seem to recall PDF file can be "locked".

I cannot find how to restore the picture preview when I select object frame. I can select object then place the frame where I want it. My picture folder then appears but when I choose a .jpg there is no preview like there used to be. I've searched everywhere for the option.