After clicking on a passport application form on a government web site, the form opened as a PDF file within Google Chrome (the browser I was using). After saving said PDF to the Downloads section of my disc, I filled in the fields and Saved As (to the Downloads section) often.
Two days later, when I re-opened the PDF file, I find that all of the fields are completely empty, as if they'd never been filled in. It's not that they're there but in white ink and are exposed by highlighting or selecting; there's no discernible trace of any of the data I had entered. It's also not the case that I saved the file somewhere else; it was saved in Downloads. The Date Modified attribute even matches the time I last saved it. I've tried opening the file using Microsoft Edge, Adobe Reader, Internet Explorer, Opera Browser, and Reader (the "app") to no avail. Same empty form.
Is there any means of recovering the data that was entered in all the fields?
Is there any precautionary measure I should take in future so as not to lose data entered in a PDF form?
I'm very surprised that I've not seen this exact problem discussed anywhere else. I have seen plenty of discussions about entire PDFs being blank when opened but that is not my situation – the full government form is there to be seen, but not my entered data.
Best Answer
Following Max W's comments, I did some experimenting with attempting to enter form data on the PDF web page using different browsers.
My findings (tabulated above):