Changelog

[3.3.1] - March 24, 2026

  • fix: handle dangling r:id on p:oleObj/p:externalData — KeyNotFoundException in slide publishing (#156)
  • fix: resolve Content directives in v:textpath/@string for VML watermarks (#141)

[3.3.0] - March 22, 2026

  • fix: prevent malformed XLSX when worksheet has no data rows (#108)
  • fix: use min-width for tab-preceding span to prevent text overflow (#110)
  • fix: update docProps/app.xml metadata in PublishSlides output (#114)
  • fix: update numFmts count attribute when adding custom number formats (#124)
  • fix: custom numFmt IDs must start at 164 per ECMA-376 (#131)
  • fix: TextReplacer.CloneWithAnnotation now returns the clone, not the original (#135)
  • perf: O(1) dictionary lookup for media deduplication cache in FluentPresentationBuilder (#128)
  • perf: cache next slide ID in FluentPresentationBuilder to avoid O(n²) scan (#140)
  • perf: cache compiled Regex, use Any() over Count() == 0, use Element() over Elements().First() (#143)
  • refactor: modernise assembler helper classes (#118)
  • refactor: modernize DocumentAssembler.cs with collection expressions and catch cleanup (#138)
  • hk: DocumentFormat.OpenXml 3.5.1, TUnit 1.20.0 (#146)
  • hk: Modernize CI workflow and update dependencies (#121)

[3.2.0] - January 25, 2026

  • hk: DocumentFormat.OpenXml 3.4.1

[3.1.0] - August 30, 2025

  • Build with .NET 10.0 and provide .NET 8 & 10 binaries (#106)

[3.0.2] - August 30, 2025

  • Extends DocumentAssembler to also apply HTML formatting on content in table cells (#101)

[3.0.1] - July 30, 2025

  • fix: incorrect insertion of sldLayoutIdLst element for SlideMaster (#100)

[3.0.0] - June 30, 2025

  • Public exposure of IFluentPresentationBuilder ergonomic API for the code behind PresentationBuilder

[2.5.2] - June 28, 2025

  • fix: relationship of theme parts (#99)

[2.5.1] - March 30, 2025

  • Issue 95 and other issues #96 by @MalcolmJohnston
  • hk: DocumentFormat.OpenXml 3.3.0

[2.5.0] - February 7, 2025

  • Insert Documents or Document Templates using Document Assembler #93 by @MalcolmJohnston

[2.4.2] - January 15, 2025

  • fix: Font Sizing Font Styling and Font Coloring is not working #94
  • hk: dependencies update

[2.4.1] - January 4, 2025

  • fix: Bug fix/document assembler paragraph properties not copied from template #91
  • fix: slide naming issues during publishing presentation with *.potx extension
  • hk: Migration to xUnit.v3

[2.4.0] - December 8, 2024

  • feat: Added support for HTML fragments in Document Assembler Content tag (#86)

[2.3.0] - November 23, 2024

  • hk: build with .NET 9.0
  • hk: DocumentFormat.OpenXml 3.2.0
  • hk: Pack with dotnet pack instead of paket
  • feat: handle invalid xml characters (#89)

[2.2.2] - November 1, 2024

  • feat: DocumentFormat.OpenXml 3.1.0 -> 3.1.1
  • docs: Fix document assembler images and other tidy up (#84)
  • hk: Document Assembler - Small Code Reorganisation (#83)

[2.2.1] - October 8, 2024

  • fix: optimized memory usage during slide publishing

[2.2.0] - September 8, 2024

  • DocumentFormat.OpenXml 3.0.2 -> 3.1.0
  • DocumentFormat.OpenXml.Framework 3.0.2 -> 3.1.0
  • SixLabors.ImageSharp 3.1.4 -> 3.1.5
  • SixLabors.ImageSharp.Drawing 2.1.3 -> 2.1.4

[2.1.1] - April 18, 2024

  • fix: regression cased by migration to struct inside OpenXML v3 #75
  • Dependencies updated

[2.1.0] - Mar 18, 2024

  • Migration to .NET 8.0

[2.0.1] - Jan 16, 2024

  • Fix regression cased by migration to struct inside OpenXML v3
  • DocumentFormat.OpenXml 3.0 -> 3.0.1
  • SixLabors.Fonts 2.0 -> 2.0.1
  • SixLabors.ImageSharp 3.0.2 -> 3.1.2
  • SixLabors.ImageSharp.Drawing 2.0.1 -> 2.1.0

[2.0.0] - Nov 26, 2023

  • Migration to .NET 6.0
  • DocumentFormat.OpenXml 3.0.0-beta0003
  • System.Drawing.Common replaced by SixLabors.ImageSharp.Drawing`
  • Removed libgdiplus dependency
  • Drop old WmlComparer

[1.13.5] - Mar 27, 2023

  • perf: improved PublishSlides perf #61

[1.13.4] - Dec 6, 2022

  • fix: issues with 7.0 packages

[1.13.3] - Dec 5, 2022

  • fix: PublishSlides: missing ppt/metadata for google presentations #59
  • Dependencies updated

[1.13.2] - Oct 4, 2022

  • remove caracters to prevent > at document assembler #57
  • Handle W.lastRenderedPageBreak in UnicodeMapper #58

[1.13.1] - Sept 27, 2022

  • long overload for Cell.Number

[1.13.0] - Sept 27, 2022

  • DocumentFormat.OpenXml (2.18)
  • Added Cell.Bool for Excel helpers

[1.12.2] - Jul 13, 2022

  • fix: PtOpenXmlUtil: process corrupted OpenXmlPart items #56

[1.12.1] - Jul 11, 2022

  • DocumentFormat.OpenXml (2.17.1)

[1.12.0] - Jun 2, 2022

  • Static Cell builder class for simpler and safer Excel generation
  • Auto new modified date for decks composed with PresentationBuilder

[1.11.0] - May 29, 2022

  • PublishSlides: reduced memory consumption #53

[1.10.2] - Mar 16, 2022

  • DocumentFormat.OpenXml (2.16.0)
  • Lock System.Drawing.Common version to v5

[1.10.0] - Feb 19, 2022

[1.9.2] - Feb 17, 2022

  • Fix: Don't show hidden slides after PresentationBuilder.BuildPresentation

[1.9.1] - Feb 9, 2022

  • Fixed incorrect usage of Stream API

[1.9.0] - Jan 28, 2022

  • DocumentFormat.OpenXml (2.15.0)

[1.8.2] - Dec 16, 2021

  • Improved memory consumption for PresentationBuilder.PublishSlides #44 by @f1nzer
  • Revert DocumentFormat.OpenXml back to 2.13.1 (because of this issue)

[1.8.1] - Nov 5, 2021

  • DocumentFormat.OpenXml (2.14.0)

[1.8.0] - Oct 25, 2021

  • DocumentAssembler: Support for multi-value XPath results #39

[1.7.3] - Oct 7, 2021

  • Fixed copy Chart Style Parts in FluentPresentationBuilder

[1.7.2] - Aug 23, 2021

  • DocumentFormat.OpenXml v2.13.1

[1.7.1] - Aug 18, 2021

  • Resolving bug with nested rowspans #35

[1.7.0] - Aug 15, 2021

  • DocumentAssembler: Support for images #31

[1.6.1] - Jul 11, 2021

  • New docs site generated by DocFx #33
  • Tests suite cleanup, samples converted to tests #32

[1.6.0] - Jul 3, 2021

  • Add WorkbookDfn.WriteTo(Stream) method #29
  • Fixed generation of multiple Excel tables
  • Fixed formatting of cells with DateTime

[1.5.0] - Jun 26, 2021

  • Structural comparison for Theme, Master, Layout #20
  • Auto-scaling for slides from presentations with different slide size
  • DocumentFormat.OpenXml (2.13)
  • System.Drawing.Common (5.0.2)

[1.4.0] - Feb 10, 2021

  • DocumentBuilder: Added ISource and TableCellSource - #17
  • DocumentFormat.OpenXml (2.12.1)
  • Added dependency on System.IO.Packaging
  • Fixed DateTime/DateTimeOffset serialisation format to Excel

[1.3.1] - July 30, 2020

  • PresentationBuilder: Fixed CopyExtendedPart

[1.3.0] - July 29, 2020

  • DocumentFormat.OpenXml (2.11.3)
  • PresentationBuilder: Bug Fixes #16

[1.2.1] - May 2, 2020

  • HTML to WML: Allow font-size with unit rem #13

[1.2.0] - March 12, 2020

  • DocumentFormat.OpenXml (2.10.1)

[1.1.4] - December 6, 2019

  • Slide title extracted and saved to document title #10
  • Ensured that Modified date is propagated
  • Compiled and tested on .NET Core 3.1 #9

[1.1.3] - December 3, 2019

  • Don't rename theme when we extract slides from auto-generated 1-layout master

[1.1.2] - December 2, 2019

  • Bug fixes

[1.1.1] - December 1, 2019

  • Extract and merge presentation without slides (only masters) #5

[1.1.0] - November 29, 2019

  • Added Slide Publishing API #2

[1.0.0] - November 21, 2019