As far as I know, it maybe have two reasons if you use PDF to PowerPoint Converter according to the usage and introduction.
One: It is about the source file of making pdf. It is known to all that nearly all kinds of files could be made to pdf file. I classify the files for two kinds: a. the files could be editable b, the files can not be editable( such as the scan files) Let’s see the files could be editable. Most of the files, like word documents, Excel documents or others could be editable, If you made this kind of file to pdf file, it is also could be chosen in the pdf file. I will show you the status like this picture 1. This kind of file could be converted to editable PowerPoint by PDF to PowerPoint Converter Then let have a look at the files can not be editable. In order to make the pdf file easy and safe, we often scan them then make them to pdf file. Such as if I want to make a whole book which has hundreds of pages to pdf file then we can scan each page to pictures and make those pictures to pdf file. If the pdf file is made by this way, we can not convert the file to editable PowerPoint by PDF to PowerPoint Converter. It will be like picture 2.
Two: It is the version of Adobe when pdf file was made. When you convert the pdf file to PowerPoint , there will be embedded font garbage characters, it will be a mess in the content. Once you cancel the mess code part, the word left on the PowerPoint could not be edited too. As the pdf file itself has no Copying Restrictions. You can select the desired text and copy it into word but when I copy the text and pasted it in the word documents ,it will be like symbols and lines. This problem simply should just have to change the font used for the display in WORD which was made to pdf file. Then we can solve this problem. If the pdf file is like this, we can not convert the pdf file to editable PowerPoint by PDF to PowerPoint Converter.