Enumeration Assignments for the Telemetry Histograms

PDF_VIEWER_DOCUMENT_VERSION

The PDF document version (1.1, 1.2, etc.)

0 - Unknown
1 - 1.1
2 - 1.2
3 - 1.3
4 - 1.4
5 - 1.5
6 - 1.6
7 - 1.7
8..10 - reserved

PDF_VIEWER_DOCUMENT_GENERATOR

The PDF document generator. It is top-25 from our test set. The "/Producer" field shall contain specified string

0 - Other
1 - "acrobat distiller"
2 - "acrobat pdfwriter"
3 - "adobe livecycle"
4 - "adobe pdf library"
5 - "adobe photoshop"
6 - "ghostscript"
7 - "tcpdf"
8 - "cairo"
9 - "dvipdfm"
10 - "dvips"
11 - "pdftex"
12 - "pdfkit"
13 - "itext"
14 - "prince"
15 - "quarkxpress"
16 - "mac os x"
17 - "microsoft"
18 - "openoffice"
19 - "oracle"
20 - "luradocument"
21 - "pdf-xchange"
22 - "antenna house"
23 - "aspose.cells"
24 - "fpdf"
25 - reserved

PDF_VIEWER_STREAM_TYPES

The PDF document compression stream types used

0 - Unknown
1 - Flate
2 - LZW
3 - DCT
4 - JPX
5 - JBIG
6 - A85
7 - AHx
8 - CCF
9 - RL
10 - Reserved

PDF_VIEWER_FONT_TYPES

0 - Unknown
1 - Type1
2 - Type1C
3 - CIDFontType0
4 - CIDFontType0C
5 - TrueType
6 - CIDFontType2
7 - Type3
8 - OpenType
9 - Type0
10 - MMType1
11 - Reserved