I modified the rml code for my desired changes such as removing/renaming a column, even after modifying the code in rml changes are not taking place in pdf report. Is there any compiled code of rml file? I even modified sxw file still no change in output.
Then I used Apache OpenOffice to modify report but the changes I make are not being reflected!
Please you can try check with your process in the below mentioned way.
In your case You must have to do the following way for the report to print with PDF format :
1.You can check with report ids which is same as in the report menu (print opetation).
2.you can also renaming that ids and menu ids if you want to customize report in your module.
3.you can check your report with your customize report with same database
4.If you are fail in point 3 then you should try to create a new database and install your customize report module on it and check to print that report on it.
I hope you may have to solve this issue and try my steps to do your job make a easily and quickly.
I hope my answer may helpful for you :)