Repository Analysis

dompdf/dompdf

HTML to PDF converter for PHP

3.7 Likely human-written View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of dompdf/dompdf, a PHP project with 11,155 GitHub stars. SynthScan v2.0 examined 48,345 lines of code across 167 source files, recording 151 pattern matches distributed across 4 syntactic categories. The overall adjusted score of 3.7 places this repository in the Likely human-written band.

The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).

3.7
Adjusted Score
3.7
Raw Score
100%
Time Factor
2026-07-14
Last Push
11.2K
Stars
PHP
Language
48.3K
Lines of Code
167
Files
151
Pattern Hits
2026-07-14
Scan Date
0.00
HC Hit Rate

What These Metrics Mean

Adjusted Score
Primary synthetic code indicator. Raw score normalised per 1,000 lines of code and multiplied by the temporal discount factor. This is the definitive comparative metric — use it to rank repositories by AI authorship density.
Raw Score
The unmodified sum of all severity-weighted, context-multiplied pattern match scores before temporal discounting. Reflects the absolute signal strength independent of when the repository was last active.
Time Factor
The temporal discount multiplier (0–100%) applied to the raw score. Repositories last updated before ChatGPT's launch (Nov 2022) receive a 5% factor. Full signal is only assigned to repositories active in the post-adoption era (Jan 2024+).
Pattern Hits
Total count of individual pattern matches across all files and categories. A high hit count with a low score may indicate a very large codebase with isolated AI snippets; a low count with a high score indicates dense, concentrated AI signatures.
HC Hit Rate
High+Critical pattern hits per file, averaged across the repository. This orthogonal signal catches repositories where a few files are densely packed with high-severity AI tells — a strong indicator even when the normalised score appears moderate due to codebase size.
Lines of Code / Files
Total lines and files analysed. The scanner examines 94 file extensions. These denominators are used to normalise the score, enabling fair comparison between repositories of vastly different sizes.

Score History

Longitudinal tracking requires multiple scan runs. Once this repository is re-scanned after new commits land, this chart will visualise how the synthetic code signal evolves over time — enabling you to detect whether AI authorship is growing, stabilising, or being actively corrected by human engineers.

No multi-scan history yet — run the scanner again to build trend data.

Severity Breakdown

Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.

CRITICAL 0HIGH 0MEDIUM 3LOW 148

Directory Score Breakdown

This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.

Pattern Findings

The scanner identified 151 distinct pattern matches across 4 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.

Reading the findings table: The Severity column indicates the diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.

Fake / Example Data99 hits · 120 pts
SeverityFileLineSnippetContext
LOWtests/_files/OutputTest/text-align/center.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/center.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/inline-block.html40 <p>Lorem ipsum <span>dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/inline-block.html40 <p>Lorem ipsum <span>dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/right.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/right.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/inline-elements.html38 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/inline-elements.html38 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/inline-elements.html42 fugiat nulla <span>pariatur.<br>Lorem</span> ipsum dolor sit amet.</p>CODE
LOWtests/_files/OutputTest/text-align/left.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/left.html38 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify-break.html35 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify-break.html35 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify-break.html39 fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p>CODE
LOWtests/_files/OutputTest/text-align/justify-break.html39 fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p>CODE
LOWtests/_files/OutputTest/text-align/justify-break.html40 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify-break.html40 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/text-align/justify-break.html44 fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p>CODE
LOWtests/_files/OutputTest/text-align/justify-break.html44 fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p>CODE
LOW…_files/OutputTest/page-break/box-decoration-bleed.html32 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOW…_files/OutputTest/page-break/box-decoration-bleed.html32 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOW…sts/_files/OutputTest/page-break/inline-element-2.html35 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmodCODE
LOW…sts/_files/OutputTest/page-break/inline-element-2.html35 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmodCODE
LOW…sts/_files/OutputTest/page-break/inline-element-3.html35 <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmodCODE
LOW…sts/_files/OutputTest/page-break/inline-element-3.html35 <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmodCODE
LOWtests/_files/OutputTest/page-break/box-decoration.html37 <div>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/page-break/box-decoration.html37 <div>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/page-break/inline-block-3.html38 <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmodCODE
LOWtests/_files/OutputTest/page-break/inline-block-3.html38 <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmodCODE
LOWtests/_files/OutputTest/page-break/inline-block-2.html39 <p>Lorem ipsum dolor sit amet, consectetur <span>adipisici elit, sed eiusmodCODE
LOWtests/_files/OutputTest/page-break/inline-block-2.html39 <p>Lorem ipsum dolor sit amet, consectetur <span>adipisici elit, sed eiusmodCODE
LOWtests/_files/OutputTest/page-break/inline-block-1.html39 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sedCODE
LOWtests/_files/OutputTest/page-break/inline-block-1.html39 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sedCODE
LOWtests/_files/OutputTest/page-break/orphans.html36 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/page-break/orphans.html36 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOW…sts/_files/OutputTest/page-break/inline-element-1.html35 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sedCODE
LOW…sts/_files/OutputTest/page-break/inline-element-1.html35 <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sedCODE
LOWtests/_files/OutputTest/position-relative/reversed.html48 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/position-relative/reversed.html48 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/inline-block-width.html30 <span>Lorem ipsum dolor sit amet, consectetur adipisici elit,CODE
LOWtests/_files/OutputTest/inline/inline-block-width.html30 <span>Lorem ipsum dolor sit amet, consectetur adipisici elit,CODE
LOW…ts/_files/OutputTest/inline/extended-parent-width.html32 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOW…ts/_files/OutputTest/inline/extended-parent-width.html32 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/inline-decoration.html37 Lorem ipsum dolor <span>sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/absolute-child.html41 <p>Lorem <span>ipsum dolor sit amet</span>.</p>CODE
LOWtests/_files/OutputTest/inline/absolute-child.html44 <p>Lorem <span><b>ipsum dolor sit amet</b></span>.</p>CODE
LOWtests/_files/OutputTest/inline/text-indent-break.html36 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/text-indent-break.html36 <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/text-indent-break.html38 <p class="nowrap">Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/text-indent-break.html38 <p class="nowrap">Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod temporCODE
LOWtests/_files/OutputTest/inline/letter-spacing.html24 Lorem ipsum <b>dolor</b> sit amet, consectetur adipisici elit.CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html75 <td>Lorem ipsum amet</td>CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html80 <td>Lorem ipsum amet</td>CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html93 <td>Lorem ipsum amet</td>CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html98 <td>Lorem ipsum amet</td>CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html111 <td>Lorem ipsum amet</td>CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html116 <td>Lorem ipsum amet</td>CODE
LOWtests/_files/OutputTest/table/border-resolution-2.html129 <td>Lorem ipsum amet</td>CODE
39 more matches not shown…
Hyper-Verbose Identifiers42 hits · 44 pts
SeverityFileLineSnippetContext
LOWtests/HelpersTest.php144 public function testCustomProtocolParsing(): voidCODE
LOWtests/DompdfTest.php287 public function testSpaceAtStartOfSecondInlineTag()CODE
LOWtests/OptionsTest.php113 public function testSettersWithUnderscores()CODE
LOWtests/OptionsTest.php247 public function testGettersWithUnderscores()CODE
LOWtests/OptionsTest.php415 public function testValidateLocalUriRejectsSiblingPathWithMatchingPrefix()CODE
LOWtests/OptionsTest.php447 public function testValidateLocalUriReturnsFileNotFoundForMissingPath()CODE
LOWtests/OptionsTest.php469 public function testArtifactPathValidation()CODE
LOWtests/OptionsTest.php526 private function translateNumberStringToInt($value)CODE
LOWtests/Renderer/RendererTest.php28 public function testResizeBackgroundImage(CODE
LOWtests/Renderer/RendererTest.php52 public static function resizeBackgroundImageProvider(): arrayCODE
LOWtests/FrameReflower/ImageTest.php13 public function testGetMinMaxContainerWidthAuto(): voidCODE
LOWtests/FrameReflower/ImageTest.php32 public function testGetMinMaxContainerWidthBasic(): voidCODE
LOWtests/FrameReflower/ImageTest.php51 public function testGetMinMaxWidthPercentageChain(): voidCODE
LOWtests/FrameReflower/ImageTest.php74 public function testGetMinMaxWidthZeroWidthZeroHeight(): voidCODE
LOWtests/FrameReflower/ImageTest.php93 public function testGetMinMaxWidthMinMaxCaps(): voidCODE
LOWtests/Css/ShorthandTest.php20 public static function marginPaddingShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php113 public static function borderWidthShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php140 public static function borderStyleShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php164 public static function borderColorShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php188 public static function borderOutlineShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php264 public static function borderRadiusShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php281 public function testBorderRadiusShorthand(CODE
LOWtests/Css/ShorthandTest.php297 public static function backgroundShorthandProvider(): arrayCODE
LOWtests/Css/ShorthandTest.php380 public static function listStyleShorthandProvider(): arrayCODE
LOWtests/Css/AttributeTranslatorTest.php10 public static function attributeToStyleTranslationProvider(): arrayCODE
LOWtests/Css/AttributeTranslatorTest.php84 public function testAttributeToStyleTranslation(CODE
LOWtests/Css/StyleTest.php251 public static function cssImageNoBaseHrefProvider(): arrayCODE
LOWtests/Css/StyleTest.php260 public static function cssImageWithBaseHrefProvider(): arrayCODE
LOWtests/Css/StyleTest.php269 public static function cssImageWithStylesheetBaseHrefProvider(): arrayCODE
LOWtests/Css/StyleTest.php326 public function testCssImageWithStylesheetBaseHref(string $value, $expected): voidCODE
LOWtests/Css/StyleTest.php339 public static function backgroundPositionProvider(): arrayCODE
LOWtests/Css/StyleTest.php583 public static function lengthPercentagePositiveProvider(): arrayCODE
LOWtests/Css/StyleTest.php1726 public static function inheritedVarValueProvider(): array {CODE
LOWtests/OutputTest/OutputTest.php73 public function testOutputMatchesReferenceRendering(Dataset $dataset): voidCODE
LOWsrc/Options.php578 public function getArtifactPathValidation()CODE
LOWsrc/Options.php587 public function setArtifactPathValidation($validator)CODE
LOWsrc/Options.php803 public function setDefaultPaperOrientation(string $defaultPaperOrientation): selfCODE
LOWsrc/Options.php820 public function getDefaultPaperOrientation(): stringCODE
LOWsrc/Options.php935 public function setIsFontSubsettingEnabled($isFontSubsettingEnabled)CODE
LOWsrc/Options.php944 public function getIsFontSubsettingEnabled()CODE
LOWsrc/Helpers.php185 public static function buildContentDispositionHeader($dispositionType, $filename)CODE
LOWsrc/Css/Style.php2768 protected function computeBackgroundPositionTransformOrigin(string $v1, string $v2): arrayCODE
AI Slop Vocabulary3 hits · 9 pts
SeverityFileLineSnippetContext
MEDIUMsrc/FrameReflower/Block.php83 // Absolutely positionedCOMMENT
MEDIUMsrc/FrameReflower/Block.php308 // Absolutely positionedCOMMENT
MEDIUMsrc/Css/Stylesheet.php961 // FIXME: this is not particularly robust...COMMENT
Over-Commented Block7 hits · 7 pts
SeverityFileLineSnippetContext
LOW.github/workflows/test.yml81 - name: Run code snifferCOMMENT
LOWlib/Cpdf.php3921 * currentBaseFont.COMMENT
LOWlib/Cpdf.php5401 $text = str_replace(["\r", "\n"], "", $text);COMMENT
LOWlib/Cpdf.php5961 //if already cached, need not to read againCOMMENT
LOWsrc/FrameReflower/Table.php121 return;COMMENT
LOWsrc/Css/Stylesheet.php1401 break;COMMENT
LOWsrc/FrameDecorator/Text.php101 {COMMENT