I looked at the blog post about how the app works. The link in the post to the app takes you nowhere, but I found the app in the App Store anyway. The problem is that the post made doing the conversion look so complicated.
I ended up paying $2.99 for an app called PDF to JPG mainly because it didn’t say it was free (with in app purchases if you want it to actually work), and it looked simple to use.
In most places on the iPhone, I can do the conversion via an app through the share sheet. I have an CSV file I want to open in Numbers? Share sheet. I have a picture I. want to email? Share sheet.
Creating a PDF is a bit harder because it’s not obvious. You need to print it, and before you actually send it to the printer, you use two fingers to zoom in on the document. It’s now a PDF. You can use a share sheet to save it or email it.
You’d think it’d be simple: I have a PDF displayed. I pull up a share sheet and save the image to my photos. But no. Doesn’t work that way.
On the Mac, Preview has the option to export a PDF to a JPG as well as other image formats. It’s handy when I have a PDF of a flyer and I need to post it to Facebook since Facebook doesn’t let you post a PDF.
But on my phone where I constantly get PDFs that I need to tweet or send out as a MMS or to Facebook, there is no built in way to do it.
One more thing I tried: I tried importing the PDF into pages, then trying to export the Pages document as an image. I think I can do this in Pages on the Mac, but not on the iPhone.
Maybe Apple needs to make a Preview App for iOS and iPadOS.