Batch Macro Max Length DPI

[ELBeavers]

Sorry for the strangely worded Post Title that appears more as a search term than a topic. I hope to find a solution to my recurring simple task that has become quite difficult even after reading John Rostron's posts about resizing images. Here is the task:

• Starting with a folder of 240 DPI images (some landscape and some portrait), I need to resize all of them to 2000px on the longest side and 72 DPI.

When I perform the task manually on a single image, it works fine. When I run it through a batch job using a macro to perform the same task, a task I successfully worked through manually to record said macro, all portrait images are stretched to landscape.

In a pinch, I had to use Photoshop to do this job recently. However, after talking my team into switching to Affinity to move away from CC, that option will go away at the end of the month. Please help. I don't want to do these by hand when I *know* there has to be an answer.

[walt.farrell]

Have you tried your message manually on a single image to make sure it works, @ELBeavers?

If you're not using the Filters > Distort > Equations approach it probably won't work, because other approaches remember the actual size, and can cause problems.

If you are using that approach, you may be hit by another issue, where macros recorded in 1.7 and 1.8 can't change the DPI without resampling and resizing the image. That would Tom into the other problem of macros remembering the actual size, and distorting images that have a different orientation.

[h_d]

@ELBeavers Mac or PC? There's no easy way to automate this in Photo because we can't use conditionals to distinguish between landscape and portrait. I can think of options in macOS.

[markw]

Would separating the images into two separate folders first, one for Landscape and one for Portrait be a viable option before starting the batch conversions?
And then batch convert the contents of the two folders separately in AP.

Outside of AP,  XnConvert (it's free!), can handle mixed image orientations, where you can specify longest side or shortest side and set dpi.

[John Rostron]

I just tried running a batch job on a set of images and just applying two macros:

Change DPI to 300 from @Carl123, and

Resize to 1000 max length from myself.

This successfully applied both macros to a set of five jpg and five aphoto images.

I understand that Carl's macro was just a matter of using Document  > Resize to reset the dpi without resampling or modifying any other dimension, so you could easily write one to change to 72 dpi.

John

[walt.farrell]

2 hours ago, John Rostron said:

I understand that Carl's macro was just a matter of using Document  > Resize to reset the dpi without resampling or modifying any other dimension, so you could easily write one to change to 72 dpi.

One could, but there seems to be a bug in 1.7 (and I think 1.8) that doesn't allow that macro to be properly recorded, as the macro will always resample (and thus resize). Carl's macro was created using 1.6.

[John Rostron]

44 minutes ago, walt.farrell said:

Carl's macro was created using 1.6.

I think I still have a working copy of 1.6. I will try to re-create this macro for 72 dpi.

John

[R C-R]

3 hours ago, walt.farrell said:

One could, but there seems to be a bug in 1.7 (and I think 1.8) that doesn't allow that macro to be properly recorded, as the macro will always resample (and thus resize). Carl's macro was created using 1.6.

That bug still exists in the just released Mac 1.8.0.168 - GM Seed beta. ☹️

Anybody know if this has ever been reported as a 1.7 bug?

[ELBeavers]

At least this lets me know I'm not crazy and that this is an awesome group to be a part of. Thank you for helping me work through this!

[walt.farrell]

1 hour ago, R C-R said:

That bug still exists in the just released Mac 1.8.0.168 - GM Seed beta. ☹️

Anybody know if this has ever been reported as a 1.7 bug?

Yes.

 

[ELBeavers]

17 hours ago, h_d said:

@ELBeavers Mac or PC? There's no easy way to automate this in Photo because we can't use conditionals to distinguish between landscape and portrait. I can think of options in macOS.

It's 2018 MacBook Pro. Here is my OS information:

ProductName:    Mac OS X
ProductVersion:    10.15.3
BuildVersion:    19D76

[h_d]

Well it's not an Affinity solution @ELBeavers, but I can offer you an Automator application that will quickly batch resize image files to 2000px on the longest dimension, keeping the other dimension in proportion, and setting the resolution to 72dpi. dm me if you're interested.

Cheers,

H

[ELBeavers]

On 2/23/2020 at 1:49 PM, h_d said:

Well it's not an Affinity solution @ELBeavers, but I can offer you an Automator application that will quickly batch resize image files to 2000px on the longest dimension, keeping the other dimension in proportion, and setting the resolution to 72dpi. dm me if you're interested.

Cheers,

H

Thanks for the offer. I already have an Automator service attached to a folder action for easy drag and drop. My goal is to eliminate that step in a single batch job with Affinity Photo.

[John Rostron]

On 2/23/2020 at 12:28 PM, John Rostron said:

I think I still have a working copy of 1.6. I will try to re-create this macro for 72 dpi.

John

I have produced a set of macros to change dpi without changing the pixel dimension here.

John