The workflow at this moment successfully explains the following features:
You can click on the red status to see more information
- Status Strong – The existence of a single JPEG layer (color) containing mostly the background and multiple monochrome bit masks containing mostly text (MRC Compression). Xerox, WH LFBC, Category
- The ability to open the document in Adobe Illustrator and move around objects separately. Xerox, WH LFBC, Category
- Separate monochrome layers for the date stamp and Alvin Onaka’s seal. Xerox, WH LFBC, Category
- Existence of a background color layer at 150 ppi resolution and monochrome layers at 300 ppi. Xerox, WH LFBC, Category
- Scaling of the layers (48% and 24%). Xerox, WH LFBC, Category
- Status Strong – Images are rotated 90 degrees clockwise. Xerox, WH LFBC
- The creation of pixel for pixel identical letters and shapes via JBIG2. Xerox, WH LFBC, Category
- Status Solid – The white border. Xerox, WH LFBC, Category
- Status Perfect – The double clipping mask. Xerox, WH LFBC, Category
- White holes in the background layer where text was lifted (x-ray). Xerox, WH LFBC, Category
- Status Strong – The PDF contains an embedded JPEG which contains a JPEG comment ‘YCbCr’. Xerox, WH LFBC, Category
- Status Strong – The PDF contains an embedded JPEG which contains identical quantization matrices. Xerox, WH LFBC, Category.
- Status Strong – The alignment of two sides of the foreground images with 8 bit boundaries in a 300 ppi layer. Xerox, WH LFBC, Category [note 1]
- Status Strong – The alignment of two sides of the foreground images touching the internal objects. Xerox, WH LFBC, Category[note 1]
- Status Solid – Speckled blocks
- Status Solid – Producer, Creator [Added 081513]
- Status Solid – Raw PDF data matches. Xerox, WH LFBC [Added 081513] [note 1]
- Status Solid – Halos (in progress)
Category
Note 1: These were never mentioned before as far as I can tell.
Still not well enough explained to my satisfaction
Status Uncertain – Halos (in progress) Category
Not Addressed by Workflow