[Eszter Kallai]

I’ve just seen Darby’s previous post. In brief that was also a good solution.

[Eszter Kallai]

Hi Jason,
I’ve read about your problem then I’ve checked one of my previous work which was an A4 size rendered image for printing. I was surprised because when I opened the picture (rendered with Cinema) in Photoshop, the picture resolution was 72 pixels/inch but I saved it with 240 pixels/inch (from Picture Viewer in Cinema). After that I realized that is not a problem.

If you would like to render images for printing you should set the resolution in Cinema to 300 pixels/inch (at least 240, but it depends on the client’s demand).
In Photoshop, you need to turn of (tick out the checkbox) the ‘Resample Image’ in Image size dialog and add the right value in the Resolution field. Now your image has the right size with the right resolution. You have to do this before the postproduction.

In my case, the rendered image size is 31.8 MB, 2807×1985 pixels, 240 pixels/inch and ~ 21×30 cm (but it’s not in a compressed format, it’s a TIFF file).

In photoshop you could see the physical size of your picture in the Image size dialog, under Document size.
When you entered the 300 instead of 72 your document size rest the same. Then you resized your image when you entered a lower dimension but it become much smaller.

Instead of render this image again with the higher resolution setting, open your file with Photoshop, Turn off ‘Resample Image’and add a lower value in the document size field. The resolution will be bigger. Change the document size according to the required resolution. If your picture is 4000 pix wide it will be around 40 cm with ~240 pixels/inch. It’s quite a big picture.

I hope this will help you.