unable to save file

[rar]

each time i open a pdf and then try to save back, told that it cannot save as there is a file already open with that name so I have to alter the name and then manually delete the original file after exiting the program. How do you set the program to overwrite the existing file?

[Claudiu (Softland)]

Make sure the pdf you open is not read-only, as it will prompt you to save a copy.