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PDFiumSharp Library

The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.

Getting Started

The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
To create or load a PDF document, use one of the PdfDocument's constructors.

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.NET wrapper around Google's PDFium library

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
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Activity
Stars
28 stars
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2 watching
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18 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
License
Activity
Stars
28 stars
Watchers
2 watching
Forks
18 forks
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Used by
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
License
Activity
Stars
28 stars
Watchers
2 watching
Forks
18 forks
Report repository
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Used by
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
License
Activity
Stars
28 stars
Watchers
2 watching
Forks
18 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
License
Activity
Stars
28 stars
Watchers
2 watching
Forks
18 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
License
Activity
Stars
28 stars
Watchers
2 watching
Forks
18 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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PDFiumSharp Library
The PDFiumSharp library is a C#/.NET wrapper around the PDFium library. It enables .NET developers to create, open, manipulate, render and save PDF documents.
Getting Started
The easiest way to get going is to reference the NuGet packages. There are five NuGet packages available:

  • PDFium.Windows contains the native PDFium binaries for windows. Either install this package or provide the binaries yourself (put pdfium_x64.dll, pdfium_x86.dll in the application directory).
  • PDFiumSharp contains the core package. With this you can create, open, manipulate, render and save PDF documents. PdfPages can be rendered to PDFiumBitmaps (which are simply memory buffers). This package depends on the presence of the native PDFium binaries.
  • PDFiumSharp.GdiPlus extends the PdfPage class with extension methods to render to Bitmaps.
  • PDFiumSharp.Wpf extends the PdfPage class with extension methods to render to WriteableBitmaps.
  • PDFiumSharp.Xwt extends the PdfPage class with extension methods to render to BitmapImages.
 To create or load a PDF document, use one of the PdfDocument's constructors.
About
.NET wrapper around Google's PDFium library
Resources
Readme
License
Activity
Stars
28 stars
Watchers
2 watching
Forks
18 forks
Report repository
Releases
Packages
Used by
Contributors
Languages