On #14303, I shared unmodified files from our bug tracker corpus that appeared to cause some problems for pdf.js.  On this issue, I'll attach files that are freshly fuzzed using files from that corpus as seeds.  I avoided files used in #14303 as seeds for these runs  

I haven't done root cause analysis, and I apologize if these are all just triggering the same underlying bug (or that fixed in #14304).  The files are named for their seed file and then the sha-256 of the fuzzed version.

[new-nasties.zip](https://github.com/mozilla/pdf.js/files/7598083/new-nasties.zip)
});
    it("gets non-default viewer preferences", async function () {
      const prefs = await pdfDocument.getViewerPreferences();
      expect(prefs).toEqual({ Direction: "L2R" });
    });
    it("gets default open action", async function () {
      const loadingTask = getDocument(
        buildGetDocumentParams("tracemonkey.pdf")
      );
      const pdfDoc = await loadingTask.promise;
      const openAction = await pdfDoc.getOpenAction();
      expect(openAction).toEqual(null);
      await loadingTask.destroy();
    });
    it("gets non-default open action (with destination)", async function () {
      const openAction = await pdfDocument.getOpenAction();
      expect(openAction.dest).toEqual([
        { num: 15, gen: 0 
        { name: "FitH" 
        null,
      ]);
      expect(openAction.action).toBeUndefined();
    });
    it("gets non-default open action (with Print action)", async function () {
      
      const loadingTask1 = getDocument(
        buildGetDocumentParams("bug1001080.pdf")
      );