How Can I open This pdf File

[weha]

Yes this was a surprise because I regularly fill in pdf's using Okular.

There is one pdf viewer that opens it successfully, Master pdf editor.
Oh and it allows editing and saving.

Here you find the 32 and 64-bit deb's:
https://code-industry.net/free-pdf-editor/

Teunis, you are a star. I have voiced my concerns regarding a reader that can open xfa pdf's previously here. Have been using adobe reader (discontinued) to open some pdf's on my efiling tax site, but was worried as to what will go down in future distro releases i.e. maybe it will at some stage no longer work.
What I did notice though is that even when file associations are changed to open with Master pdf editor, this only works with files that have been saved or are on disk. Selecting to open them in browsers like Chrome will revert to adobe reader***. You can try with this random site provided you have both installed: http://www.bat.com/group/sites/UK__9...bLive/DO72TJQU This is not really a problem, as once saved I can open them with Master pdf editor.
Using Xubuntu there are no problems.
For the 64 bit versions on 14.04 I have installed via a .deb file obtained thus: wget http://get.code-industry.net/public/...4.12_amd64.deb which actually gave me the 3.6.00 version.
For the later QT versions the deb file download links are shown on the site.

***Edit: Only when running Chrome firejailed. https://firejail.wordpress.com/

[GreyGeek]

I've uninstalled Chromium and can't remember how to set mimes (*.pdf) to be opened by specific documents but FF has that ability.

[weha]

I've uninstalled Chromium and can't remember how to set mimes (*.pdf) to be opened by specific documents but FF has that ability.

See the edit to my previous post. Haven't yet figured out a way to get Chrome and Opera to open master pdf editor when running them firejailed.

[GreyGeek]

See the edit to my previous post. Haven't yet figured out a way to get Chrome and Opera to open master pdf editor when running them firejailed.

"man firejail" suggests --bind or perhaps using namespace and --join.

[oshunluvr]

Teunis thanks for the Master PDF tip! I didn't know about that program. Okular if fine for everyday usage, but I have to assemble and disassemble PDFs often in my work so I always end up on my company laptop for the more complex tasks. Hopefully, Master PDF will eliminate that step.

[weha]

"man firejail" suggests --bind or perhaps using namespace and --join.

I am OK with the way things are, just wanted to confirm that the mime type application set in file associations is 'honored' when running Opera and Chrome without firejail, but not when running them firejailed. The join command will open the application firejailed provided it is whitelisted.
Thank you for your input GreyGeek.