Bump com.itextpdf:itext-core from 9.0.0 to 9.1.0 in /server

[dependabot]

Bumps com.itextpdf:itext-core from 9.0.0 to 9.1.0.

Release notes

Sourced from com.itextpdf:itext-core's releases.

iText Core/Community 9.1.0

To celebrate both iText’s 25th anniversary and Valentine’s Day, we bring you iText Core version 9.1. There’s a lot of to love about this release, with a huge performance increase in table creation, massively extended SVG support, and further Digital Signing goodies.

Extended SVG Support

Many additions and enhancements have been made to our in-house implementation since it was introduced, with coverage of the specification steadily increasing to meet customer needs. This release sees our biggest leap yet with over 40 tickets being closed – full marks to our incredible dev team!

Newly added are support for text clipping paths, 'marker-mid' properties, text decoration, and passing markers from elements to children. We’ve improved general font handling, while some other improvements to draw attention to are in the support for relative size attributes, text positioning, 'direction' properties, stroke opacity, and dash patterns.

There's also improved support for CSS-specific SVG, which you can find more details on in the pdfHTML release notes. However, we'll call out the improved support for different CSS origins in SVG and referencing external resources with the @importurl() rule.

To top it off we’ve significantly improved the SVG module’s usage of the advanced typography features enabled by the pdfCalligraph add-on. See the example PDF on our Knowledge Base for a demonstration!

Increased Table Performance

With iText Core 9.1 the table rendering code has been highly-optimized, particularly when it comes to tagged tables. This is especially noticable for tables with many rows, or when tagging tables. See more details

Digital Signatures

We’re continually working on iText’s digital signing and validation capabilities to provide a unique breadth of support in the market. MAC integrity protection support is extended to support two-step signing. There’s also new code examples for signing with the Cloud Signing Consortium (CSC) API, which we recently wrote about in Part V of our Digital Signing with iText series. You can find these in the GitHub samples repositories linked below.

Alongside that, we’ve made some general improvements (if you know, you know) to signing and validation. In particular, the workaround for certificates where the pathLength parameter is set to 0 for the basicConstraints extension is no longer required.

PDF/UA-2

Our PDF/UA-2 implementation is improved, specifically, when using the Annot tag for content elements in PDF 2.0 documents.Don’t tell anyone, but our team is preparing further PDF/UA-2 goodies for our next release.

Pull Requests

For this release, we’d like to thank Stefan Bechtold for submitting a PR adding support for styling tables with nth-last pseudo class selectors. Thanks also to Artyom Skrobov for squashing a bug when decoding an empty PdfString, and finally Zuzu-Typ for fixes to the kernel PDF encryption constants documentation.

Bug Fixes and Miscellaneous

There’s an update for merge handling when remote and embedded go-to actions are present, and we resolved a customer issue related to decoding Xref streams with missing bytes.

Many bugs have been resolved for SVG rendering and CSS layout. In addition, general bugfixes have been made to font and text handling, form fields, signing and validation, and more.

Other Stuff

If you use iText for digital signing, you may be interested in the Digital Signatures Hub which contains a ton of useful resources and examples. In particular, we have a new chapter to our Digital Signing with iText series. In Part V, we take you through the steps of signing PDFs with Java via a remote signing service offering CSC API access.

Don’t forget that in addition to the resources on our Knowledge Base, on our GitHub you can find a ton of useful up-to-date samples in the following repos:

Java

• https://github.com/itext/itext-publications-examples-java
• https://github.com/itext/itext-publications-book-java
• https://github.com/itext/itext-publications-signing-examples-java
• https://github.com/itext/itext-publications-signatures-java
• https://github.com/itext/itext-publications-highlevel-java

... (truncated)

Commits

• 6d43eb7 [RELEASE] iText 9.1.0
• a80ad00 [RELEASE] 9.1.0
• 1ffa4d5 Fix behavior for svg containing elements with zero or negative stroke-width
• 457ddde SVG: don't draw rect with negative or zero height or width
• 586e3e3 SVG: add tests for text-decoration inheritance
• 862fac8 SVG: Fix currentColor handling
• 903b8df SVG: fix preserveAspectRatio on image
• d49afc6 Fix rgba alpha channel parsing
• 07a241a Support display:none and visibility:hidden for svg elements except text
• 69e07f1 Add missing AES_GCM encryption references
• Additional commits viewable in compare view

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[dependabot]

Looks like com.itextpdf:itext-core is up-to-date now, so this is no longer needed.