Hi [USER=111848]@timoat[/USER]
As a side note, I also have a p900 and the ideal image PPI to present to the image is either 360 or 720. 360 should be fine. At that resolution, the printer is not doing some internal resizing for you. You had mentioned 350 ppi and did not know if that was a typo. This is certainly not your main issue, but I thought it was worth mentioning.
I had some additional thoughts upon rereading your post since I may have misunderstood your use of the word "copy." So, the issue may be different than I had imagined.
If I were creating an A4 document, here are my steps.
Create the A4 document at 360 DPI into which you want to insert your Sony Image.
With the A4, there read at the correct final resolution, use the command File > Place Embedded of the Sony File. This will place a Smart Object over your A4 image, ready to transform the size to precisely for scaling and placement. It will reduce the PPI of the smart object to match the PPI of the A4.
Yes, the resolution of your Sony image is reduced, yet it is done in the best possible way down to 360 ppi. If you are zooming in so far that it bothers you, create your initial A4 document at 720 ppi before you use the File > Place Embedded command to bring in the Sony Image. That will work fine is input to the p900 as well.
Of course, when you print, make sure you are using the high-quality setting for 1440dpi photo resolution (higher does not help much and makes the print time horrendously long.
Give these steps a try and see if they solve your problem. If this does not fit exactly what you need, just keep asking questions and provide more details on the steps you are taking.
Hope the incremental information is helpful
John Wheeler
