AmyLin2013

Proposal for Adding Curve Annotation Support （with Measurement Attributes） in PDF Annotations

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**Introduction:** In the field of engineering and architecture, there is a significant demand for the ability to annotate curves and include measurement attributes in PDF documents. This proposal aims to...

Proposal for Adding Cap and CP Keys to Polygon and Polyline Annotations for Caption Support

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It is suggested to add support for the **Cap** and **CP** keys to the Polygon and Polyline annotation dictionary entries. Measurement attributes require this entry, for example, if I need...

I suggest adding support for the Measure key to the Square and Circle annotation dictionary entries, as well as adding support for the Cap and CP keys. In the CAD...

Proposal: Enhancing Free Text Alignment Options

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Proposal: Enhancing PDF Free Text Alignment Options To enhance the flexibility and usability of free text annotations, I propose the addition of more alignment options, including vertical alignment. The suggested...

Regarding the display and interaction sequence of different types of annotations.

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**Describe the bug** PDF specifications do not dictate the priority of display and interaction for different types of annotations. By default, one might expect the display and interaction priority to...

Proposal to Support Independent Text Opacity Settings for FreeText Annotations

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I would like to propose an enhancement to the PDF 2.0 annotation specification, particularly regarding the opacity settings for FreeText annotations. Currently, in the PDF 2.0 specification, the /ca dictionary...

**Describe the bug** In clause 7.12.6, Example, the code sample for the DeveloperExtensions dictionary appears to have inconsistent indentation. The current example reads: > In this snippet, the lines starting...

**Describe the bug** Clause: 7.10.5.2 “Operators and operands” Page146 Location: Paragraph 2 beginning “The operand syntax for Type 4 functions shall follow PDF conventions …”, sentence mentioning braces Current text...

Table 293 -Incomplete definition of the BE (Best-Effort) dictionary / BE

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**Describe the bug** In the table defining the BE (Best-Effort) dictionary, the description appears to be incomplete. While the MH (Must-Honor) entry explicitly specifies that parameters shall be honoured for...

Incorrect cross-reference to padding/truncation step in “Password algorithms”

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**Section 1:** 7.6.4.3.2, Algorithm 2: Computing a file encryption key in order to encrypt a document (revision 4 and earlier) - Step (a) explicitly performs padding/truncation of the password string....