IronPDF Features

Create PDF documents using:

• HTML Strings and Templates.
• ASPX WebForms.
• MVC Views.
• HTML documents.
• or from any URL.

HTML to PDF Supports:

• Full and high fidelity HTML 4 and HTML 5 rendering.
• CSS 3.
• JavaScript.
• Image assets.
• SVG assets.
• Icon Fonts (Fontello, Bootstrap, FontAwesome).
• Responsive layouts.
• External stylesheets and assets (http https or filesystem).
• Static and multithreaded rendering.
• Loading URLS using with custom:
  • Network login credentials.
  • UserAgents.
  • Proxies.
  • Cookies.
  • HTTP headers.
  • Form variables allowing login behind HTML login forms.

HTML to PDF Settings

• Set custom “base URL” or file paths allowing asset files to be easily loaded from file system or across the web.
• Virtual View port (Width and Height) allowing for responsive layouts to be used.
• Screen or Print CSS media types.
• Convert HTML Forms to PDF forms.
  • Read only or editable.
• Load custom stylesheets programmatically.
• Set output PDF resolution in DPI.
• Set JPEG image quality.
• Enable JavaScript support including optional Render delays.
• Custom page numbering.
• Automatically scale HTML content to fit paper dimensions.
  • Preserving text rendering quality.
• Full Color and Grayscale PDF.
• Accept HTML encoded in any major file encoding. Default to UTF-8.
• Set PDF paper margins.
  • Set in mm or inches.
  • Supports zero margin PDFs.
• Create PDFs using any standard international paper size.
  • Support for custom sizing in mm or inches.
  • Paper orientations in landscape or portrait.
• Enable or Disable HTML backgrounds from showing in PDFs.
• Custom zoom.

Utilities

• ImagetoDataURI utility makes it easy to embed System.Drawing image objects into HTML strings.

ASPX to PDF (.NET Framework only)

• Automatically render an ASPX webform as PDF in 3 lines of code. PDF documents may be set to download or display in the browser.

PDF Imaging

• IronPDF makes it easy to work to convert PDF documents to and from Images.

Image To PDF

• Convert any number of image files or System.Daring objects into a PDF in 1 line of code.

PDF to Image

• Rasterize any or all PDF pages to Images.

Image Extraction

• Extract embedded images an existing PDF.

Image Support

• BMP, JPEG, GIF, ONG and TIFF Files.
• System.Drawing Bitmap and Image Objects.

PDF Printing

• Turn any PDF into a PrintDocument object.
• Programmatically send PDFs to a Printer without Adobe.

PDF File IO

• PDFs can be loaded or saved from Files, Binary Data or MemoryStreams including:
  • Load and save PDFs.
  • Support save and load using user and administrator passwords with 128 bit encryption.

PDF Signatures

• Digitally sign a PDF or add additional signatures after editing.
  • Set Signature Images, Location, Metadata, Contact information and Timestamps.
  • Verify PDF signatures.

Editing PDFs

• Add, Edit and Remove PDF Outlines / Bookmarks.
• Add text annotations (sticky notes) programmatically to any PDF page.
• Add foreground or background overlays from HTML or PDF assets.
• Add HTML watermarks with opacity to any PDF.
• Stamp new HTML Content onto any existing PDF page.
• Add logical or HTML headers and footers to any PDF.
• Merge and Join PDF pages.
• Copy, Add, and Remove pages.
• Rotate pages.
• Edit MetaData, user permissions & PDF passwords.

PDF Content Extraction

• Extract plain Text and Images from existing PDFs.

Headers and Footers

• Headers and Footers can be added when a PDF is created, or added to existing PDFs

Logical Headers and Footers

• Fonts size and Font Family.
• Divider Lines.
• Simple API using Center, Left, and Right text fields.

HTML Header Footers

• Supports CSS, Images and even JavaScript.
• BaseUrl for loading assets from http, https or file system.
• Load or ignore CSS from parent HTML document.

Headers and Footers support merged data including:

• Page numbers.
• Page count.
• Titles.
• URL.
• Time and date.

Generating PDFs

• HTML to PDF:
  • HTML File to PDF
  • HTML String to PDF
  • URL to PDF
• Content Pages to PDF:
  • Razor to PDF (Blazor Server)
  • CSHTML to PDF (MVC, Razor)
  • ASPX to PDF (WebForms)
  • XAML to PDF (MAUI)
• PDF File Conversion:
  • Images to / from PDF
  • DOCX to PDF (Microsoft Word)
  • RTF to PDF (Rich Text Format)
  • MD to PDF (Markdown)
  • PDF to HTML
• Supports:
  • UTF-8 Character Encoding
  • Base URLs and Asset Encoding
  • TLS Website and System Logins
  • Async and Multithreading
  • Custom Logging
  • Cookies

Formatting PDFs

• Use HTML Assets:
  • HTML (5 and below)
  • CSS (Screen and Print)
  • Images (jpg, png, gif, tiff, svg, bmp)
  • JavaScript (Custom Render Delays)
  • Fonts (Web and Icon)
• Apply Page Templates:
  • Add Headers and Footers
  • Add Page Numbers
  • Add Page Breaks
  • Fit to Paper and Zoom
  • Custom Margins
• Apply Page Settings:
  • Responsive Layouts
  • Custom Paper Size
  • Orientation and Rotation
  • Color
• Supports PDF Standards:
  • PDF Versions (1.2 - 1.7)
  • PDF/UA (PDF/UA-1)
  • PDF/A (PDF/A-3b)

Editing PDFs

• Set Properties and Security:
  • Set Password and Permissions
  • Digital Signatures (.pfx, .p12)
  • PDF File Compression
  • Edit PDF Metadata
  • Edit and Sign Revision History
• Edit Document Structure:
  • Add, Copy, and Delete Pages
  • Merge and Split PDFs
  • Annotations
  • Attachments
  • Bookmarks and Outline
• Edit Page Content:
  • Draw Text and Bitmap
  • Find and Replace Text
  • Headers and Footers
  • Stamp Text and Images
  • Custom Watermarks
  • Backgrounds and Foregrounds
• Use PDF Forms:
  • Create and Edit Forms
  • Fill Existing Forms
• View, Read, and Print PDFs:
  • Print to a Physical Printer
  • Extract PDF Text and Images