HTML to PDF converter for PHP
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).
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.
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.
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.
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.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tests/_files/OutputTest/text-align/center.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/center.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/inline-block.html | 40 | <p>Lorem ipsum <span>dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/inline-block.html | 40 | <p>Lorem ipsum <span>dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/right.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/right.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/justify.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/justify.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/inline-elements.html | 38 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/inline-elements.html | 38 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/inline-elements.html | 42 | fugiat nulla <span>pariatur.<br>Lorem</span> ipsum dolor sit amet.</p> | CODE |
| LOW | tests/_files/OutputTest/text-align/left.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/text-align/left.html | 38 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 35 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 35 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 39 | fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p> | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 39 | fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p> | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 40 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 40 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 44 | fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p> | CODE |
| LOW⚡ | tests/_files/OutputTest/text-align/justify-break.html | 44 | fugiat nulla pariatur. Lorem ipsum dolor sit amet.</p> | CODE |
| LOW | …_files/OutputTest/page-break/box-decoration-bleed.html | 32 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | …_files/OutputTest/page-break/box-decoration-bleed.html | 32 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | …sts/_files/OutputTest/page-break/inline-element-2.html | 35 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmod | CODE |
| LOW | …sts/_files/OutputTest/page-break/inline-element-2.html | 35 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit, sed eiusmod | CODE |
| LOW | …sts/_files/OutputTest/page-break/inline-element-3.html | 35 | <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod | CODE |
| LOW | …sts/_files/OutputTest/page-break/inline-element-3.html | 35 | <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod | CODE |
| LOW | tests/_files/OutputTest/page-break/box-decoration.html | 37 | <div>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/page-break/box-decoration.html | 37 | <div>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/page-break/inline-block-3.html | 38 | <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod | CODE |
| LOW | tests/_files/OutputTest/page-break/inline-block-3.html | 38 | <p><span>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod | CODE |
| LOW | tests/_files/OutputTest/page-break/inline-block-2.html | 39 | <p>Lorem ipsum dolor sit amet, consectetur <span>adipisici elit, sed eiusmod | CODE |
| LOW | tests/_files/OutputTest/page-break/inline-block-2.html | 39 | <p>Lorem ipsum dolor sit amet, consectetur <span>adipisici elit, sed eiusmod | CODE |
| LOW | tests/_files/OutputTest/page-break/inline-block-1.html | 39 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sed | CODE |
| LOW | tests/_files/OutputTest/page-break/inline-block-1.html | 39 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sed | CODE |
| LOW | tests/_files/OutputTest/page-break/orphans.html | 36 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/page-break/orphans.html | 36 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | …sts/_files/OutputTest/page-break/inline-element-1.html | 35 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sed | CODE |
| LOW | …sts/_files/OutputTest/page-break/inline-element-1.html | 35 | <p>Lorem ipsum dolor sit amet, <span>consectetur adipisici elit,</span> sed | CODE |
| LOW | tests/_files/OutputTest/position-relative/reversed.html | 48 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/position-relative/reversed.html | 48 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/inline/inline-block-width.html | 30 | <span>Lorem ipsum dolor sit amet, consectetur adipisici elit, | CODE |
| LOW | tests/_files/OutputTest/inline/inline-block-width.html | 30 | <span>Lorem ipsum dolor sit amet, consectetur adipisici elit, | CODE |
| LOW | …ts/_files/OutputTest/inline/extended-parent-width.html | 32 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | …ts/_files/OutputTest/inline/extended-parent-width.html | 32 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/inline/inline-decoration.html | 37 | Lorem ipsum dolor <span>sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/inline/absolute-child.html | 41 | <p>Lorem <span>ipsum dolor sit amet</span>.</p> | CODE |
| LOW | tests/_files/OutputTest/inline/absolute-child.html | 44 | <p>Lorem <span><b>ipsum dolor sit amet</b></span>.</p> | CODE |
| LOW⚡ | tests/_files/OutputTest/inline/text-indent-break.html | 36 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/inline/text-indent-break.html | 36 | <p>Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/inline/text-indent-break.html | 38 | <p class="nowrap">Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW⚡ | tests/_files/OutputTest/inline/text-indent-break.html | 38 | <p class="nowrap">Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor | CODE |
| LOW | tests/_files/OutputTest/inline/letter-spacing.html | 24 | Lorem ipsum <b>dolor</b> sit amet, consectetur adipisici elit. | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 75 | <td>Lorem ipsum amet</td> | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 80 | <td>Lorem ipsum amet</td> | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 93 | <td>Lorem ipsum amet</td> | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 98 | <td>Lorem ipsum amet</td> | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 111 | <td>Lorem ipsum amet</td> | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 116 | <td>Lorem ipsum amet</td> | CODE |
| LOW | tests/_files/OutputTest/table/border-resolution-2.html | 129 | <td>Lorem ipsum amet</td> | CODE |
| 39 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tests/HelpersTest.php | 144 | public function testCustomProtocolParsing(): void | CODE |
| LOW | tests/DompdfTest.php | 287 | public function testSpaceAtStartOfSecondInlineTag() | CODE |
| LOW | tests/OptionsTest.php | 113 | public function testSettersWithUnderscores() | CODE |
| LOW | tests/OptionsTest.php | 247 | public function testGettersWithUnderscores() | CODE |
| LOW | tests/OptionsTest.php | 415 | public function testValidateLocalUriRejectsSiblingPathWithMatchingPrefix() | CODE |
| LOW | tests/OptionsTest.php | 447 | public function testValidateLocalUriReturnsFileNotFoundForMissingPath() | CODE |
| LOW | tests/OptionsTest.php | 469 | public function testArtifactPathValidation() | CODE |
| LOW | tests/OptionsTest.php | 526 | private function translateNumberStringToInt($value) | CODE |
| LOW | tests/Renderer/RendererTest.php | 28 | public function testResizeBackgroundImage( | CODE |
| LOW | tests/Renderer/RendererTest.php | 52 | public static function resizeBackgroundImageProvider(): array | CODE |
| LOW | tests/FrameReflower/ImageTest.php | 13 | public function testGetMinMaxContainerWidthAuto(): void | CODE |
| LOW | tests/FrameReflower/ImageTest.php | 32 | public function testGetMinMaxContainerWidthBasic(): void | CODE |
| LOW | tests/FrameReflower/ImageTest.php | 51 | public function testGetMinMaxWidthPercentageChain(): void | CODE |
| LOW | tests/FrameReflower/ImageTest.php | 74 | public function testGetMinMaxWidthZeroWidthZeroHeight(): void | CODE |
| LOW | tests/FrameReflower/ImageTest.php | 93 | public function testGetMinMaxWidthMinMaxCaps(): void | CODE |
| LOW | tests/Css/ShorthandTest.php | 20 | public static function marginPaddingShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 113 | public static function borderWidthShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 140 | public static function borderStyleShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 164 | public static function borderColorShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 188 | public static function borderOutlineShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 264 | public static function borderRadiusShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 281 | public function testBorderRadiusShorthand( | CODE |
| LOW | tests/Css/ShorthandTest.php | 297 | public static function backgroundShorthandProvider(): array | CODE |
| LOW | tests/Css/ShorthandTest.php | 380 | public static function listStyleShorthandProvider(): array | CODE |
| LOW | tests/Css/AttributeTranslatorTest.php | 10 | public static function attributeToStyleTranslationProvider(): array | CODE |
| LOW | tests/Css/AttributeTranslatorTest.php | 84 | public function testAttributeToStyleTranslation( | CODE |
| LOW⚡ | tests/Css/StyleTest.php | 251 | public static function cssImageNoBaseHrefProvider(): array | CODE |
| LOW⚡ | tests/Css/StyleTest.php | 260 | public static function cssImageWithBaseHrefProvider(): array | CODE |
| LOW⚡ | tests/Css/StyleTest.php | 269 | public static function cssImageWithStylesheetBaseHrefProvider(): array | CODE |
| LOW | tests/Css/StyleTest.php | 326 | public function testCssImageWithStylesheetBaseHref(string $value, $expected): void | CODE |
| LOW | tests/Css/StyleTest.php | 339 | public static function backgroundPositionProvider(): array | CODE |
| LOW | tests/Css/StyleTest.php | 583 | public static function lengthPercentagePositiveProvider(): array | CODE |
| LOW | tests/Css/StyleTest.php | 1726 | public static function inheritedVarValueProvider(): array { | CODE |
| LOW | tests/OutputTest/OutputTest.php | 73 | public function testOutputMatchesReferenceRendering(Dataset $dataset): void | CODE |
| LOW | src/Options.php | 578 | public function getArtifactPathValidation() | CODE |
| LOW | src/Options.php | 587 | public function setArtifactPathValidation($validator) | CODE |
| LOW | src/Options.php | 803 | public function setDefaultPaperOrientation(string $defaultPaperOrientation): self | CODE |
| LOW | src/Options.php | 820 | public function getDefaultPaperOrientation(): string | CODE |
| LOW | src/Options.php | 935 | public function setIsFontSubsettingEnabled($isFontSubsettingEnabled) | CODE |
| LOW | src/Options.php | 944 | public function getIsFontSubsettingEnabled() | CODE |
| LOW | src/Helpers.php | 185 | public static function buildContentDispositionHeader($dispositionType, $filename) | CODE |
| LOW | src/Css/Style.php | 2768 | protected function computeBackgroundPositionTransformOrigin(string $v1, string $v2): array | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | src/FrameReflower/Block.php | 83 | // Absolutely positioned | COMMENT |
| MEDIUM | src/FrameReflower/Block.php | 308 | // Absolutely positioned | COMMENT |
| MEDIUM | src/Css/Stylesheet.php | 961 | // FIXME: this is not particularly robust... | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | .github/workflows/test.yml | 81 | - name: Run code sniffer | COMMENT |
| LOW | lib/Cpdf.php | 3921 | * currentBaseFont. | COMMENT |
| LOW | lib/Cpdf.php | 5401 | $text = str_replace(["\r", "\n"], "", $text); | COMMENT |
| LOW | lib/Cpdf.php | 5961 | //if already cached, need not to read again | COMMENT |
| LOW | src/FrameReflower/Table.php | 121 | return; | COMMENT |
| LOW | src/Css/Stylesheet.php | 1401 | break; | COMMENT |
| LOW | src/FrameDecorator/Text.php | 101 | { | COMMENT |