From 51a0fb2dad330fa089a2cda0f5138163da45f0ab Mon Sep 17 00:00:00 2001
From: PrinsFrank <25006490+PrinsFrank@users.noreply.github.com>
Date: Fri, 5 Jun 2026 19:30:23 +0200
Subject: [PATCH] TextShowingOperator interacts with transformation matrix
 resulting in offsetY changes

---
 .../Command/Operator/State/TextShowingOperator.php  | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/Document/ContentStream/Command/Operator/State/TextShowingOperator.php b/src/Document/ContentStream/Command/Operator/State/TextShowingOperator.php
index 9a5cfe7..81864f6 100644
--- a/src/Document/ContentStream/Command/Operator/State/TextShowingOperator.php
+++ b/src/Document/ContentStream/Command/Operator/State/TextShowingOperator.php
@@ -5,6 +5,7 @@
 
 use Override;
 use PrinsFrank\PdfParser\Document\ContentStream\Command\Operator\State\Interaction\InteractsWithTextState;
+use PrinsFrank\PdfParser\Document\ContentStream\Command\Operator\State\Interaction\InteractsWithTransformationMatrix;
 use PrinsFrank\PdfParser\Document\ContentStream\Command\Operator\State\Interaction\ProducesPositionedTextElements;
 use PrinsFrank\PdfParser\Document\ContentStream\PositionedText\PositionedTextElement;
 use PrinsFrank\PdfParser\Document\ContentStream\PositionedText\TransformationMatrix;
@@ -12,12 +13,22 @@
 use PrinsFrank\PdfParser\Exception\ParseFailureException;
 
 /** @internal */
-enum TextShowingOperator: string implements InteractsWithTextState, ProducesPositionedTextElements {
+enum TextShowingOperator: string implements InteractsWithTextState, ProducesPositionedTextElements, InteractsWithTransformationMatrix {
     case SHOW = 'Tj';
     case MOVE_SHOW = '\'';
     case MOVE_SHOW_SPACING = '"';
     case SHOW_ARRAY = 'TJ';
 
+    #[Override]
+    public function applyToTransformationMatrix(string $operands, TransformationMatrix $transformationMatrix, TextState $textState): TransformationMatrix {
+        if ($this === self::MOVE_SHOW || $this === self::MOVE_SHOW_SPACING) {
+            return (new TransformationMatrix(1, 0, 0, 1, 0.0, -$textState->leading))
+                ->multiplyWith($transformationMatrix);
+        }
+
+        return $transformationMatrix;
+    }
+
     /** @throws ParseFailureException */
     #[Override]
     public function applyToTextState(string $operands, TextState $textState): TextState {