I have Pinta 2.1.1 running in Flatpak (v1.14.5). When I run Pinta from the command line passing an image located in /tmp as an argument, it complains about the file not existing:

$ /var/lib/flatpak/exports/bin/com.github.PintaProject.Pinta  /tmp/img.jpg 

Pinta: GLib.GException: Error when getting information for file “/tmp/img.jpg”: No such file or directory

I am guessing this is due to [/tmp being blacklisted by default](https://docs.flatpak.org/en/latest/sandbox-permissions.html) , and Pinta [not configured](https://github.com/flathub/com.github.PintaProject.Pinta/blob/7d1e540906c8f52af7e9060aded28cf755f1456b/com.github.PintaProject.Pinta.yaml#L12-L33) to enable access to it. However, once the application is running, said image can be opened via 'Open file' (Ctrl+o) dialog. Is this expected?

First things first - If I got it right, the Linux folks might like adobe alternatives like GIMP (instead of Photoshop) etc to work with images/pdf/videos on Linux. So they might never miss adobe products on Linux. But what brings me to this question is - i found a article which describes on: How to Install Adobe Acrobat Reader on Ubuntu 20.04 Focal Fossa Linux I was surprised, because as per my understanding, none of adobe products are available for linux platforms (correct me if I am wrong ). Then I though Acrobat Reader might be an exception and checked on adobe site. My finding is as captured on the screenshot. --> No, there is no Linux Version of acrobat reader on adobe site. 1) I want to understand how ftp://ftp.adobe.com/pub/adobe/reader/unix/9.x/9.5.5/enu/AdbeRdr9.5.5-1_i386linux_enu.deb exists when adobe does not show it on their website (ok even unix version is not listed on there website). 2) Like Acrobat Reader, are there any other products like Flash etc that can obtained through FTP.

I'm trying to superimpose a straight line onto a .png image. GIMP is notoriously impossible to use for simple things, so people have suggested Pinta . However, as far as I can tell, the only lines you can draw with this program are freeform ones, i.e., there doesn't appear to be anything like a ruler tool. How can I draw a straight line? Or is there another program that does it? Again, I need to be super-imposing on an existing .png file, so Xfig won't work.