Attach (recommended) or Link to PDF file here:

Configuration:
- Web browser and its version: Firefox 95.0
- Operating system and its version: Windows 10
- PDF.js version: Whatever is shipped with Firefox 95.0
- Is a browser extension:

Steps to reproduce the problem:
1. Open file in Adobe Acrobat and get message that file is protected. Cannot change anything without password
2. Open file in Firefox 95.0. Allows free editing of form fields and on top the file can be saved.
3. Open the saved file from Firefox with Adobe Acrobat and you still get the password protected message but the values are changed!

Testfile
[testfile.pdf](https://github.com/mozilla/pdf.js/files/7692008/testfile.pdf)

What went wrong?
Firefox allows editing of protected PDF files!!!


*   behaviour is enabled. The constants from {TextLayerMode} should be used.
 *   The default value is `TextLayerMode.ENABLE`.
 * @property {number} [annotationMode] - Controls if the annotation layer is
 *   created, and if interactive form elements or `AnnotationStorage`-data are
 *   being rendered. The constants from {@link AnnotationMode} should be used;
 *   see also {@link RenderParameters} and {@link GetOperatorListParameters}.
 *   The default value is `AnnotationMode.ENABLE_FORMS`.
 * @property {IPDFAnnotationLayerFactory} annotationLayerFactory
 * @property {IPDFXfaLayerFactory} xfaLayerFactory
 * @property {IPDFStructTreeLayerFactory} structTreeLayerFactory
 * @property {Object} [textHighlighterFactory]
 * @property {string} [imageResourcesPath] - Path for image resources, mainly
 *   for annotation icons. Include trailing slash.
 * @property {string} renderer - 'canvas' or 'svg'. The default is 'canvas'.
 * @property {boolean} [useOnlyCssZoom] - Enables CSS only zooming. The default
 *   value is `false`.
 * @property {number} [maxCanvasPixels] - The maximum supported canvas size in
 *   total pixels, i.e. width * height. Use -1 for no limit. The default value
 *   is 4096 * 4096 (16 mega-pixels).
 * @property {IL10n} l10n - Localization service.
 */
const MAX_CANVAS_PIXELS = compatibilityParams.maxCanvasPixels || 16777216;
/**
 * @implements {IRenderableView}
 */
class PDFPageView {
  /**
   * @param {PDFPageViewOptions} options
   */
  constructor(options) {