We could use:
https://github.com/mozilla/pdf.js/blob/c3d08580627471432a6ad0b2fdb948df64126afa/src/display/api.js#L929

and look at bit 4.

The following pdf:
https://orimi.com/pdf-test.pdf
is not editable in neither Acrobat nor Edge nor Foxit and nor Okular.
for (const js of javaScript) {
          if (js && AutoPrintRegExp.test(js)) {
            triggerAutoPrint = true;
            break;
          }
        }
      }
    }
    if (triggerAutoPrint) {
      this.triggerPrinting();
    }
  },
  /**
   * @private
   */
  async _initializeMetadata(pdfDocument) {
    const { info, metadata, contentDispositionFilename, contentLength } =
      await pdfDocument.getMetadata();
    if (pdfDocument !== this.pdfDocument) {
      return; 
    }
    this.documentInfo = info;
    this.metadata = metadata;
    this._contentDispositionFilename ??= contentDispositionFilename;
    this._contentLength ??= contentLength; 
    
    console.log(
      `PDF ${pdfDocument.fingerprints[0]} [${info.PDFFormatVersion} ` +
        `${(info.Producer || "-").trim()} / ${(info.Creator || "-").trim()}] ` +