I've seen some people's DAZ Studio renders posted as fairly large pictures, but for me, I can't find a setting that outputs a large picture larger than the 700 pixel range or so. Setting the pixels to  the max of 10,000 doesn't seem to affect the actual rendered picture's size, so I have to go into GIMP 2 and make it larger. Then, of course, you risk some definition loss. Sharpening helps, but I prefer not to use it.
Is there any way to get bigger pictures in DAZ without increasing them in post work?

Thanks,

In render settings set your output size then select render to new window  or  File.
When New Window is done select save last render and save it in the format
you want.
If selecting Render to file. Give it a file name and location. after render open in
favorite program.

4000 pixels is about as large as I have had the need to go, but it works for me.

(keep in mind that I am still on 1.8, so if the tabs/dialogs are different I apologize...)
At the top of the screen/window there is a drop-down for "render," in that drop down is render settings. Open this dialog. Set an appropriate ratio/aspect (square, 3:4, etc..), once this is chosen enter the desired size in pixels.  I suggest choosing to render to file, in the options further down, instead of rendering to another window or what have you. I don't know if that last part might have anything to do with your situation, or not, but I know it was my problem getting full screen size, or larger, renders back when I started out in Studio.

Hope this helps, or that if it is a bit different in the current versions that someone will come in behind me and and correct it. :)

No, you are right Orchid, as you and Lighthorse  said, changing the size does not change anything when you render to the view port, after setting your ratio and size you have to choose "Render to new window" or "render to disk".

ah, I've been rendering to viewport all this time. I'll give your suggestions a try. Thanks!