Batch / macro to convert group of photos to 300 dpi

[WLRayburn]

I design print magazines and one of the key things I do before layouts is convert all images to 300 dpi. This is necessary to insure images will be used at appropriate sizes in layout and pass preflight reviews before going to press. Otherwise, a low-res image used at 100% "size" will appear far larger than it should for a print layout. If used, it would print as a blurry, blocky mess.

In Adobe, I use Bridge and Photoshop. I created a simple Action in Photoshop to change only the dpi of the image. Bridge then lets me batch process images quickly. 

I've attempted to create a similar Macro in Affinity Photo 2 with no success. It shows a save of "document properties" but that's essentially it. And since I can't create a macro that does that one thing, I can't use the Batch tool to process a group of images. 

 

[John Rostron]

Hello @WLRayburn, and welcome to he forums.

There is a bug in the macro recording in AP1.7 and  later. I have put together a set of macros recorded in 1.6 which do work in later versions (including V2). See here:

You can use these in a batch file.

John

[MiriamNZ]

John Rostron's Macros to convert to 300dpi won't import into Photo v2. 

I am not sure if it is because of they dont work in version 2, or dont work on a Mac.

I a keen for a Mac and Photo 2 macro to do this.

 

When I make a macro it not only remembers the 300dpi but it uses the pixel dimensions of the image I use while I make the macro, even when "resampling" is unchecked.

I cannot make a macro without an image open
There are no "settings" icons on the macro to adjust things in the resize step.

 

Any help would be appreciated.

 

MAcOS 12.6 (Monterey); Photo 2 2.0.0

[MiriamNZ]

13 minutes ago, MiriamNZ said:

John Rostron's Macros to convert to 300dpi won't import into Photo v2. 

I

I found the answer: 

"

1. If you have a .afmacro (no s) file you import it using the Macro panel.
2. If you have a .afmacros file you import it using the Library panel."

The macros have an s on the end. They imported fine in the library panel, and they work perfectly.

Thank you!