Trim or prune wide margin in PDF via Publisher like open-source Briss on Windows

[KFam]

Briss has been a wonderful tool for Windows and open-source OS systems to trim off excess white spaces surrounding some published PDF documents.  Is there any way to do global trimming? Or is there a convoluted method involving defining new Master page resizing, etc. ?

On the Briss tool (last version 0.9) one could drag corners to desired proportions for Left and Right pages and it is done on requesting a crop.  It automatically appends a suffix "_crop"  to output filename if required. 

 

[firstdefence]

I think it would have to be apply a preconfigured Master page, but the problem I think is the resizing of the pages that come from top left not centrally, else continue with briss and make a request for this feature, if master masters doesn't work for you.

 

[walt.farrell]

3 hours ago, firstdefence said:

but the problem I think is the resizing of the pages that come from top left not centrally,

Or does that not do what I think it would?

[firstdefence]

6 hours ago, walt.farrell said:

Or does that not do what I think it would?

Lets try it, If it doesn't scale whatever is on the page it might be a goer.

Update: It doesn't appear to work, maybe I'm doing something wrong, regardless of the anchor point selected it always appears to maintain the margins top and left so the content appears to be pushed down. 

I installed Briss via Terminal and used home brew: {Brew install Briss}, then again in terminal simply typed Briss at the Prompt to start the GUI and load a PDF in to get a sense of what it did.

So Briss  GUI loads
 

It automatically selects a close crop

and then you export to a cropped PDF.

This is the original document margins

[KFam]

Yes, it is always a breeze with Briss.  And I thought I could get alternative to a Java-driven app via Affinity Publisher or Photo. Sadly quite difficult at this point.  May have to test out new V2 version when I have time.

 

[firstdefence]

1 hour ago, KFam said:

Yes, it is always a breeze with Briss.  And I thought I could get alternative to a Java-driven app via Affinity Publisher or Photo. Sadly quite difficult at this point.  May have to test out new V2 version when I have time.

 

The initial load screen is nicer and now supports drag and drop.

Workspace is simple and neat with most things on a right click context menu.

Also feels quicker.

[walt.farrell]

23 hours ago, firstdefence said:

Update: It doesn't appear to work, maybe I'm doing something wrong, regardless of the anchor point selected it always appears to maintain the margins top and left so the content appears to be pushed down. 

It worked fine for me in a test I just did. I created a document with Facing Pages, 8.5" x 11" (or a Spread size of 17 x 11). I then used Document Setup to trim off an inch (making the Spread size 16 x 10) and everything ended up just as I expected.

Here are the original and resized documents:

resized.afpuboriginal.afpub

Note: I did not adjust the Margin size; just the page/spread size.