removing txt in pdf

I translate text in mixed graphics/txt pdf files from one language to another.
The pdf files are prepared probably in Word, by putting the artwork in jpg into a document and adding the text on it in a text box.
In order to replace the original text I delete it first. I do it usually by converting the files to jpg, and removing the text in a graphic program. Then I use the same method, i.e. I put the file in Word document, add the new text and print the translated file to pdf.
However in this way I mar often the graphics, and handling off/on the jpg also impairs the artwork.
I am looking for a way to remove the original text directly from the pdf.
Is it possible at all? And if so, how?
please advise
thanks

Hey IDR!

There is a variety of applications that can do it for you. You can just search for PDF Editors on google.com and you'll find a lot of results.

The one I used in the past and found particularly handy was the Adobe Acrobat (Adobe - Adobe Acrobat family: Create PDF file, edit PDF file, convert PDF to word, convert PDF to doc), but I'm sure you can find different programs at much cheaper prices (i.e. Edit PDF Files with *the* PDF Editor - Free Download).

Bottom line; get a PDF Editor

Hope this helps!