srg

Yes in fact i should have said: Yes it is logical but only if the DPI are assumed to be the same thing as PPI

Yes it is logical but only if the DPI are the same thing as the PPI

Thank you. I believe i have rather clear the difference between Dots Per Inch and Pixels Per Inch. The problem is that AP uses DPI instead of PPI, in fact these two entities should be non-homogeneous and therefore non-divisible instead they are: in your example 3369 Pixels divided by 1440 equal 2.34. In conclusion if i want to embed a high value of DPI (for the printer) i MUST resample the image getting humongous file dimensions. This is not what I thought the AP help was saying. all the best to all.

Thank you, that is exactly my point and my question is not answered. If I want to change only the DPI as the AP help suggests the size changes too, i believe because DPI are in effect PPI in the resize window.

No update?....

Thank you, not sure is it an out of focus area though. I will check it ou.t

Focus stacking of images creates a halo. It does not seem to be related a movement of the camera or the subject and I have never seen this in the earlier versions of AP. Best

Hi srg, Which Affinity app are you using? Unless i'm mistaken, you should be able to do this in Affinity Photo. Open the image and then click Document>Resize Document, uncheck the resample box and enter 1440DPI then if you export this out as a JPG with the metadata embedded the DPI value will be 1440 DPI but the image dimensions will not have changed. Hi, stokerg Not sure what is going on but I got your email but I do not see the post. In any case I use AP and no, that does not work. The DPI change with changing the size of the image. This is the problem I am having.

Hello, I have a simple question that may have been addressed before. I use Epson Print Layout for printing on quality paper. I need high resolution printing, ie high Dot Per Inch. With this application it is easy to fix a precise print size but the DPI must be embedded in the file to be printed. Now how can I set (resize) the file so that I can print at high resolution without making the file monstrously big? A small print like 11 x15 at 1440 DPI can get huge, in the GB range. Scaling do not seem to work since increasing the DPI reduces the size of the print.

Walt.Farrell I hate this to become a back and fort but I must clarify: the reason I want to change the DPI is NOT to affect the print size but to affect the print resolution i.e.the DPI as by the AP help manual I posted before. you

posted my previous not knowing you have posted this. Still I look at the definition of AP help and I am confused: the size no matter in which measure should not change if I change only the order to the printer of how many DPI to print. Why there is no reason change the DPI? I want an image at whatever resolution I want ie at whatever DPI I want. The resolution of one image changes exactly with the DPI at which the image have been printed. Here is the definition of Scaling in AP Help: Scaling will embed a specific print resolution into an image's metadata to force it to print at a specific dpi (e.g. 300 dpi). The image's pixel dimensions remain unaffected.

I get your point but not that of AP: according to their on line Help, they tell me that resizing without resampling (box near Resample un-checked also called scaling) only changes the the Number of Dots Per Inch the printer will print as by AP order. Thus if I want an image of a determined fixed size (the size I want) printed at various DPI, the size of the image in pixel, inches or whatever should not change. It it does that means that there is a confusion between pixels and dots of the printer. DPI also can be changed in the crop function further confusing the subject in my opinion since in this case I believe they scale the image.

I was not clear. My point is: If there is a difference between DPI (a printer setting) and PPI (a screen setting), why the two are linked like they are now. If: Scaling Scaling will embed a specific print resolution into an image's metadata to force it to print at a specific dpi (e.g. 300 dpi). The image's pixel dimensions remain unaffected then, unless I am missing something, I should be able to force a different DPI without AP changing the size of the image no matter how the size is measured (pixels or inches or whatever) see the video Screen Recording 2019-08-25 at 3.00.50 PM.mov

Not sure this is a bug but certainly something to clarify. If I want to increase only the printing resolution (>DPI) I go to resize document, un-check the resample square, then type the number of DPI I want and click the Resize button. When I do this I noticed that after I un-check the resize square the size of the image in pixel become inactive. This is what I think is correct. But, when the size is in inches or other units but pixels, the size value in the window do not become inactive but follows the proportion with the pixels, ie. becomes smaller, i.e. the number of pixels is fixed. I do not think that this is correct since I do not want to change the size (dimension) of the image but only its DPI that AP must send to the printer. I may be missing something.