Hi Teodord, thanks on your time and answers. Sorry if I was unclear when using word compile. I'm not compiling .jrxml files everytime user runs a report, I'm doing this only if .jrxml has changed. Anyways I have all .jrxml and .jasper files on server so users can dowload .jrxml files, change and upload them again, and in that moment if source .jrxml is different from the uploaded .jrxml I'm compiling a new version of .jasper file. Regarding JRHtmlExporterParameter.SIZE_UNIT I never did manage to make use of this parameter, nor did it help me to make reports look bigger in my web app. I'll try to figure out what I was doing wrong and how it works. When you say I could use a pdf viewer I guess you're thinking on embeded pdf viewer in ffox or ie, haven't tried that but I think speed could be an issue with this one and especially if users have ability to drill down, I have to try this ot be sure but also browsers mem usage is my biggest concern, I'll try it out and post the results. I was aware of flash viewer project home, but there was no news or any modifications for a long time, and now I can see you've uploaded 3.7 version couple hours ago, thanks for that. I think flash viewer has lots of potential because it takes jasper print from session, and shows the report correctly with options to zoom and pagination which is great, but the best thing is it can easilly be modified so it has buttons for export to pdf, excel, which are nothing more but links to servlet with params to tell what kind of export I want, and connection to jasper print in session. I haven't done that but I'm thinking of doing that. It would be great to have some kind of container for reports to show in web apps like it's done in swing, and flash viewer in my opinion is the closest thing available at this moment. Is there a plan to develop some additional fetures in flash viewer or is it just for a testing purpose? Thanks again, Teodord.