Introduction You have taken a lot of pictures during the vocation, and want to select some beautiful ones to put together as PDF for sharing. However, you cannot find …
Introduction Wish to protect your PDF files security so that other people won’t be able to open your PDF files to do some copy and paste? There is no …
Introduction A digital signature uniquely identifies the originator of digitally signed data and also ensures the integrity of the signed data against tampering or corruption. So digital signatures are …
Introduction Scanned documents available for use are not always formatted in the way that users need them. In many cases images must be flipped or rotated to convey the proper …
Introduction Scanned PDF files are superb for display and storing purposes, but they cannot be altered as the contents are images instead of editable text, and this can make some …