I am using GSAS II and GSAS I for reitveld refinement. How can I print the hkl values in ouput curves (pdf format) after refinement in GSAS II since the output curve doesn't contain information such as hkl and 2theta values for peak fitting . can any one please suggest me to sort out this issue
There must be some option in the control file that you need to select.
You may switch to Fullprof which is more user friendly for such tasks.
I agree with the previous suggestion. You can use fullprof that is more user friendly than GSAS and you should activate some code number that allow to save many files with the parameters you want. In general the files are not pdf but ascii files, with columns with the data of interest.
GSAS-II : in data tree, select PWDR ... (name of the data), expand the tree, select Reflection Lists, from here u can copy the hkl values or select Export then Export HKLs.
GSAS I : click liveplot, under liveplot window select File > Export Plot > as .csv file
Powder or Histogram > Phase Flags (select one u wannaplot and uncheck all the refinement) > powpref > genless > liveplot (do the same as above)