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ISO 21757-1:2020 section 12.27.1 [Runtime] General needs clarification

1

section 12.27.1 [Runtime] General contains the following description: "An object that represents the run-time instance of the player. Each Runtime object can have its own unique script engine and set...

datalogics-pgallot

Dictionary entries with null values

10

**Description** 7.3.7 "Dictionary objects" makes the following two statements: (A) > A dictionary entry whose value is null (see 7.3.9, "Null object") shall be treated the same as if the...

pesco

Content stream operators are "PDF objects"?

17

**Describe the bug** There is an internal inconsistency in the wording of Section 7.8.2 "Content streams". Its paragraph 1 makes the following statement: > A content stream ... consists of...

pesco

Annex E.2 list of places where 2nd class names are explicitly not required is incomplete

1

Annex E.2, 2nd bullet under "Second class" states ".. _except keys added to a document information dictionary (see 14.3.3, "Document information dictionary") or a thread information dictionary (in the **I**...

petervwyatt

ICCBased Lab colorspace

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This text is from ISO32K2:2020, bottom of page 191: > PDF writers shall only use the profile types shown in "Table 67 — ICC profile types" for specifying calibrated colour...

faceless2

Several integer key values do not state explicit valid ranges

9

Several integer keys in dictionaries do not state any explicit valid ranges, such as "positive integer ..." or "non-negative integer ...". One way to fix this quickly may be to...

petervwyatt

Clarify restrictions for uncoloured (shape-only) Type 3 glyphs

4

Glyphs in a Type 3 font may contain their own colour descriptions via the d0 operator or specify only shape via the d1 operator. While transparency was not mentioned as...

t-merz

BCP 47 language escape sequences should support 3 characters

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ISO 32000-2, 7.9.2.2.2 "Text string language escape sequences" contains the following text after NOTE 1: > The escape sequence shall consist of the following elements, in order: > a) The...

t-merz

What if a stream is null?

10

Where does the spec state how to interpret a reference to an object in an object stream when that stream (itself an indirect object) is the null object, especially if...

pesco

Syntax of content stream operators between BX/EX

9

The syntax for content stream operators is not explicitly defined. This is a problem with *compatibility sections* as introduced by the last paragraph of 7.8.2 "Content streams": > They bracket...

pesco