Photoshop's "PDF Presentation" shrinks file, inflates size, not control

[Ocean 11]

Because you cannot use the pdf module in Bridge at this time due to a bug that distorts the color, I tried to use the Photoshop PDF presentation tool.

I can't get it to work.

I input a file 1376 x 1729 (jpeg) and what I get is a tiny 330x415 pixel pdf at twice the file size of the original file.

I cannot see a control where to adjust the output file size.

Why does Photoshop output a file that is unusably small? Why are there no controls about output size?

Why are both pdf modules in Photoshop and Bridge not working?

Photoshop 20.0.1 on os x high sierra

[Jeff Arola]

If your just saving a single image, try just File>Save As>Photoshop PDF.

For the PDF Presentation try the High Quality Print setting.

You could also check out the Print Module in Lightroom Classic.

(Lightroom Classic is included in the Creative Cloud Photography plan)

[Ocean 11]

That's what I did.

You end up in the same pdf presentation module, and the resulting pdf is an unusable tiny thingy.

[Jeff Arola]

Does your jpeg have the resolution embedded?

If in photoshop with the original file open before the pdf save, you go to Image>Image Size, what is the Resolution?

What appliocation are you viewing the pdfs in after saving or presentation where the image is a different size from original?

[Ocean 11]

Yes, the jpeg was created to a specific output format I wanted the pdf to have.

My plan was to create a single page pdf of about 1800 x 1200 pixels - which could be adapted better if viewed on a small screen than just sending jpeg.

Then this 1800 x 1200 pixel jpeg would be opened, "save as Photoshop pdf" - no size choices offered from the menu, so I'd assume the pdf would be the same 1800 x 1200 size.

But no, it comes out about 450 pixels at the long edge.