In DIP10:
Open the program.
Go to:File/Open
Browse to your picture and click on it.
Now go to: Format/Resize Image. You will see the inch, pixel and resolution for your photo. Click in the circle next to "pixels" to lock it. Now change the resolution to 300. Now click in the circle next to "resolution" to lock it in. Click OK to return to the workspace.
Now go to: File/New. You should again see "inches", "pixels" and "resolution".
Make sure the resolution is set at 300 and locked in.
Now change the "inches" to the size you want. You may need to either check or uncheck the "maintain ratio" box depending on the size you want.
Click OK to return to the workspace.
On the right of your screen you should see the Stack and Files. If not, on the toolbar click on "stack" and "files" buttons. You will see your photo and the blank canvas.
Now, from the "Files" on the right, click on the new blank canvas to make it the active item.
Now left click on your photo and drag it onto your canvas.
If you have already dragged the photo onto the canvas you can only resize it by using the resizing squares around the edge of it. You will need to resize as I wrote above.
You should also check the default resolution in DIP.
Go to: Tools/Options and you can check to see that it is at 300dpi.
To check the resolution of your photo before you open it in DIP: Browse to your photo. Right click on it and select "properties". Now click on the "summary" tab. The resolution is listed there.
Hope this helps.
