PdfViewer VS sumatrapdf

There are some pdf readers that protect you against those things.

On Android, for example, there is the GrapheneOS Pdf Viewer [1]. It's readme has a pretty good explanation of how it works.

1: https://github.com/GrapheneOS/PdfViewer

Secure PDF Viewer. FOSS. The Simple Rick of PDF viewers. Reads PDFs and doesn't spy on you. At the time of this writing, printing PDFs with this app is a bit awkward. You have to use the "Share" button and then scroll down to the printer icon or "send to printer" icon to print the PDFs. MJ PDF Reader also belongs in this slot. FOSS. Printing PDFs is simpler and easier with this app.

I’m curious, have you tried SumatraPDF (uses muPDF under the hood)?

https://github.com/sumatrapdfreader/sumatrapdf

Do you mind reporting those issues either to SumatraPDF at https://github.com/sumatrapdfreader/sumatrapdf/issues or directly to MuPDF at https://bugs.ghostscript.com/ if it also has the same issue? Thank you!

There are many wonderfully weird PDFs and epubs out there, but we do our best to fix issues. :)

FWIW, https://github.com/sumatrapdfreader/sumatrapdf/issues/1249 ("Support form filling for at least 1040 irs form") has a comment saying "MuPDF-GL has the capability to edit fields and save the PDF" of a 1040.

I have just learned the Firefox 93 added support XFA - https://techdows.com/2021/10/open-xfa-pdfs-in-firefox.html .

So it would appear there are free software solutions to XFA forms.

Just because something doesn't seem far-fetched to you, doesn't mean most people will regard it as far-fetched.

Many people all sorts of "sectarian objections" - far more than there are SovCits or other tax protesters. Stallman has never come across as a tax protester. Ergo, I think it's far-fetched that "sectarian objections" is strongly associated with tax protests.

Further, at https://stallman.org/archives/2017-may-aug.html we can read Stallman opinine that we need to "return to the "bad old days", when Americans in general could have a decent life, not penury; when the US could afford to build what the public needed instead of privatizing everything with a toll" by making taxation more progressive. At https://stallman.org/archives/2011-jan-apr.html we read he supports "The Fairness in Taxation Act [which] would raise taxes to 45% on incomes over a million dollars a year."

link for the lazy

If you are going to run something in wine, try sumatrapdf. It's FOSS but Windows only. (sadly, but runs great on wine)

Sumatra is Adobe free, free, and can remember the page you were on.

Sumatra PDF has always been my choice: minimal, lightweight, no bloat... just perfect!