How do you create a pdf from images (.pngs) but target an A4 landscape page size

[Simon eF]

I have a set of images (pngs) that are relatively high res (3k * 1.8 k) and want to create a PDF with each image as an A4 landscape page.  If I simply import these images into acrobat (using create from file), I get a page size something like 39x27 inches.

Is there some way to set the page size before importing?

(Also, is there a way to make the sizes metric?)

Thanks

Simon

[Amal.]

Hi Simon,

Hope you are doing well and sorry to hear that. As described you want to create a custom page size of the images in the PDF.

Please go through the steps shared under the heading 'Create and use custom page size' in the help page https://helpx.adobe.com/acrobat/using/using-pdf-printer.html and see if that works for you. 

Regards

Amal

[Simon eF]

So in essense, I need to create the pdf from the images as before (with the wierd page size) and then "print to pdf" to get an A4 pdf?

[try67]

You can create a new file with a blank A4 page using this code:

app.newDoc(8.3*72, 11.7*72);

Then you can use the Background tool to insert your image to the page and scale it down so that it fits it.

The entire process can also be scripted, if you want to add multiple pages.

[try67]

Addendum: Another option is to use the Scale Pages preflight tool, if you have Acrobat Pro DC.

[Simon eF]

Where do I use the "app.newDoc(8.3*72, 11.7*72);" code?   At the moment I'm just using Adobe Acrobat's   menus with
   File ➡Create➡Pdf from File...

If there's a script approach that would be preferable as I'm writing code to generate the images and I'm still tweaking that program so anything to automate the process would be a blessing.

(This is all because the pdf export option from the documentatin tool I'm using (confluence) is woeful, but I can use the browser to save a massive image which I'm automatically dicing into pages after detecting white space breaks in text/images)

[try67]

You don't find it, you use it... Either from the Console, or as a part of a larger script.

[Simon eF]

Answering my own question, I've found the easiest solution for me is to use ImageMagick's "convert" command i.e.

convert -page 842x595 Image1.png Image2.png Image3.png  ...etc..  Document.pdf

This was a tip on stack overflow. The 842x595 is effectlive A4 in landscape