Muscatine PDF and the AP JPEG – Part 2

Remember Hermitian’s hypothesis that somehow, not only was the Muscatine PDF created before ABC news created its PDF (Hermitian had without evidence concluded that Applewhite was somehow the author), but was also created by Applewhite. As I have shown now, a simple workflow again explains the data much better.

Ok, I did the following

  1. Import the JPEG into Adobe Photoshop
  2. Change image resolution to 200ppi
  3. Crop image (rough crop)
  4. Save as PDF – downsample JPEG to 120ppi, high quality, preserve editing and fast load, PDF 1.3 compatible, embedded thumbnail
  5. Extract JPEG

The resulting pdf was 5.8 MB (5,812,654 bytes) and 8.7 × 10.28 inches versus 5.9 MB (5,892,754 bytes) and 8.7 × 10.36 inches for the Muscatine PDF. Not bad since I do not have CS2 photoshop…

Both jpegs are now YCbCr4:2:0 encoded…

Things get more interesting. Matching Quantization tables for the extracted JPEG. I’d say another Hermitian Myth laid to rest. The best 20 minutes of my time so far🙂

4db82608b486f-000.jpg

Quantization table
  Precision=0; Table index=0 (luminance)
       4   3   3   4   3   4   6   5
       5   6   8   7   7   7   8   9
       8   8   8   8   9  12  10  10
      10  10  10  12  14  12  12  12
      12  12  12  14  12  13  13  13
      13  13  12  14  16  16  16  16
      14  18  20  20  20  18  20  20
      20  20  20  20  20  20  20  20
  Estimated quality level = 87.67%
  Precision=0; Table index=1 (chrominance)
       4   4   4   5   5   5  12   9
       9  12  20  14  14  14  20  20
      17  17  17  17  20  20  20  20
      20  20  20  20  20  20  20  20
      20  20  20  20  20  24  24  24
      24  24  20  27  27  27  27  27
      27  27  27  27  27  27  27  27
      27  27  27  27  27  27  27  27
  Estimated quality level = 79.65%
Average quality: 90.18% (90%)
AP110427018673_200ppi-000.jpg

Quantization table
  Precision=0; Table index=0 (luminance)
       4   3   3   4   3   4   6   5
       5   6   8   7   7   7   8   9
       8   8   8   8   9  12  10  10
      10  10  10  12  12  12  12  12
      13  13  12  12  12  13  13  13
      17  17  12  14  16  16  16  16
      19  18  20  20  20  18  20  20
      20  20  20  20  20  20  20  20
  Estimated quality level = 87.49%
  Precision=0; Table index=1 (chrominance)
       4   4   4   5   5   5  12   9
       9  12  22  14  14  14  17  20
      22  22  17  17  20  20  20  20
      26  20  20  20  20  20  20  20
      20  20  20  20  20  24  24  24
      24  24  20  27  27  27  27  27
      27  27  27  27  27  27  27  27
      27  27  27  27  27  27  27  27
  Estimated quality level = 79.41%
Average quality: 90.02% (90%)
  Precision=0; Table index=2 (chrominance)
       4   4   4   5   5   5  12   9
       9  12  22  14  14  14  17  20
      22  22  17  17  20  20  20  20
      26  20  20  20  20  20  20  20
      20  20  20  20  20  24  24  24
      24  24  20  27  27  27  27  27
      27  27  27  27  27  27  27  27
      27  27  27  27  27  27  27  27
  Estimated quality level = 79.41%
Average quality: 90.02% (90%)