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Jonas Jenwald 10a99ea0a7 Let SMask/Mask images fallback to the parent image dimensions (issue 19611)

One of the images have a corrupt SMask, where the /Height-entry is bogus; see the excerpt below (via https://brendandahl.github.io/pdf.js.utils/browser/).
```
SMask (stream) [id: 17, gen: 0]

    ColorSpace = /DeviceGray
    Height = /Length
    Subtype = /Image
    Filter = /FlateDecode
    Type = /XObject
    Width = 157
    Matte (array)
    BitsPerComponent = 8
    Length = 3893
    <view contents> download
```

Hence we enable SMask/Mask images to fallback to the parent image dimensions, and also add more validation of the width/height to get a better error message when that data is wrong.

2025-03-10 12:37:44 +01:00

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