Import PDF changes page sizes to be the same

The following script will rasterize all pages at each unique page size. Thanks to the late JJMack for the code to iterate over all pages!

Change the various PDF options as necessary (colour mode, resolution, page box etc.)

/*
Rasterize Multi-Page PDF using Variable Mediabox Size.jsx
v1.0 11th August 2022, Stephen Marsh
https://community.adobe.com/t5/photoshop-ecosystem-discussions/import-pdf-changes-page-sizes-to-be-the-same/td-p/10423186

NOTE: Pages at 32,000+ pixel width or height limit will become distorted!

Based on a script from the late John J. McAssey (JJMack)
https://community.adobe.com/t5/photoshop-ecosystem-discussions/open-pdf-pages-as-layers/td-p/10425413
*/

#target photoshop
app.bringToFront();

// Save the current ruler units and set to pixels
var savedRuler = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;

var pdfOpenOpts = new PDFOpenOptions();
pdfOpenOpts.antiAlias = true;
pdfOpenOpts.bitsPerChannel = BitsPerChannelType.EIGHT;
// MEDIABOX | CROPBOX | BLEEDBOX | TRIMBOX | ARTBOX
pdfOpenOpts.cropPage = CropToType.MEDIABOX;
pdfOpenOpts.mode = OpenDocumentMode.RGB;
pdfOpenOpts.resolution = 300;
pdfOpenOpts.suppressWarnings = true;
pdfOpenOpts.usePageNumber = true;

var theFile = File.openDialog("Select your PDF file", "Select:*.pdf");
app.displayDialogs = DialogModes.NO;
var check = true;
var page = 1;

while (check === true) {
    try {
        pdfOpenOpts.page = page;
        var thePdf = app.open(theFile, pdfOpenOpts);

        if (activeDocument.width.value >= 32000 || activeDocument.height.value >= 32000) {
            app.beep();
            alert("The rasterized page content may be distorted as the width or height is 32,000 pixels or higher!");
        }

        page++;
    } catch (e) {
        check = false;
    }
}

// Restore the ruler units
app.preferences.rulerUnits = savedRuler;

https://prepression.blogspot.com/2017/11/downloading-and-installing-adobe-scripts.html

(removed) this just happened to me on an 16 page document, just now found out all these came back on boards from the printers as wide as the BIGGEST one (1000mm across!) !!! And they were meant to be frame infills for filming a tv show!! I've been ordering things this way for 5 years from my older software so I never checked that after upgrading everything would be WRONG! haaaaa!!! This is a fresh (removed) indeed!

socratesc67055960  wrote If i export a PDF from illustrator with multiple different size pages and open that in photoshop Selecting all 3 and clicking ok now changes the size of the pages to be the same size

Hi Socrates,

Try Bounding Box instead of Media Box with Constrain Proportions. That's what worked for me.

If not, play with the other options, such as bleed and crop (put a bleed and crop in Illustrator first). You may have had these settings in a previous version of Photoshop and lost them when you upgraded.

~ Jane

I do not import PDF Pages into Photoshop in my work. However I tested what you wrote.

Yes it seems to be a change made in CC 2019 prior of Photoshop will import PDF pages as different size document when Pages sizes in a document differ from other in a document.  Each page is open as a document.  This behavior surprised me for there is only one Image size setting in the Import PDF Dialog???? 

It turns out that if you change the image size setting in the dialog  All Photoshop versions of Photoshop open all selected pages the size image document the size set in the dialog.   Perhaps Adobe changed the import PDF pages behavior in CC 2019 to make it be consistent with dialog's One Image Size settings.

It would be nice if Adobe made Photoshop's Transforms behavior consistent again.   Adobe support should be better.....

As an aside: Why do you convert/import the pdf with Photoshop?

and this never use to happen

In which version do you claim that this behaviour was different?