There are different reasons why something that looks like text does not behave like text. The most common problem is that you are actually looking at an image or a picture of text. In this case, you can very likely (this depends on the quality of the image) run OCR and then after that you should be able to edit this text. The important thing here is to run OCR with the "Editable Text and Images" setting in the OCR settings. Otherwise you end up with text that is stored "behind" the original image.
If OCR does not work, chances are you are dealing with text that was converted to "outlines". In this case, the text was converted from true text (which you can edit) to vector drawings, that have nothing to do with text anymore (but still look like text). In this case, you are out of luck. Your only option in this case is to convert the complete page (or the complete documents) to a high resolution image file (e.g. a 600dpi TIFF image), and then import this image again into Acrobat (and therefore converting it to PDF), and then running OCR on that.
Im having an issue. I try to delete a few letter and it goes nutty. the text shifts right then the entire format is off.
its in a box and I select the text I want to delete and it shifts and the text is still there and its overlapped total mess.
help me please : ) NEW GUY
Yes, this can happen when trying to edit PDF files. Basically there's nothing that can be done about it, unless you re-create the file, either from the source file (the best option), or by exporting it to another format, editing it there and then creating a new PDF from it.