PDFium Component – High-Performance PDF Rendering for Delphi
PDFium Component is a powerful, lightweight PDF viewer and manipulation component for Delphi, built on Google’s robust PDFium engine. It delivers blazing-fast PDF rendering, comprehensive text extraction, interactive form filling, and advanced document manipulation capabilities. Designed specifically for Delphi and C++Builder developers, this component seamlessly integrates into your Delphi applications.
PDFium Component provides native Delphi components and full Object Pascal source code support, enabling developers to create professional PDF viewer applications, extract text and images from PDF documents, handle interactive PDF forms, and perform various PDF manipulation tasks with minimal code.
PDFium Component supports:
Delphi 7, 2007, 2009-XE8
C++Builder 6, 2009-XE8
RAD Studio 10 Seattle, 10.1 Berlin, 10.2 Tokyo, 10.3 Rio, 10.4 Sydney
RAD Studio 11 Alexandria, 12 Athens & 13 Elbrus
Support for both 32-bit and 64-bit compilation
Key Features
High-Performance PDF Rendering: Lightning-fast PDF page rendering powered by Google’s PDFium engine, optimized for smooth scrolling and real-time display.
Comprehensive Display Modes: Support for single page, continuous, double page, and double continuous viewing modes with automatic page layout.
Text Selection and Extraction: Precise character-level text selection with copy/paste support, search functionality, and full text extraction capabilities.
Interactive PDF Forms: Complete form filling support including text fields, checkboxes, radio buttons, combo boxes, and list boxes with form data extraction.
Annotation Support: View and interact with PDF annotations including links, highlights, notes, and other annotation types.
Advanced Navigation: Bookmark tree navigation, page thumbnails, hyperlink support, and programmatic page jumping.
Zoom and Rotation: Flexible zoom levels (10%-800%), fit page, fit width, actual size modes, and 90-degree rotation support.
Document Information: Access to PDF metadata including title, author, subject, keywords, creator, producer, creation date, and modification date.
Security Features: Password-protected PDF support with automatic password prompting.
Printing Support: High-quality PDF printing with page range selection, collation, and multiple copy support.
Image Export: Export PDF pages to bitmap images (BMP, JPEG, PNG) with configurable DPI and quality settings.
Search Functionality: Fast text search with case-sensitive and whole-word matching options.
Memory Efficient: Optimized memory usage with smart page caching and on-demand rendering.
No External Dependencies: Self-contained component with included PDFium DLL, no additional software required.
Component Architecture
PDFium Component consists of two primary components:
TPdf: Non-visual component for PDF document loading, manipulation, and data extraction. Handles document properties, bookmarks, text search, form fields, and page operations.
TPdfView: Visual component for PDF rendering and user interaction. Provides display control, zoom management, rotation, text selection, and interactive navigation.
Fast page rendering with hardware acceleration support
Efficient memory management with automatic page caching
Smooth scrolling in continuous viewing modes
Quick text search across large documents
Responsive UI even with complex PDF files
Optimized for both 32-bit and 64-bit architectures
Code Example
// Simple PDF viewer implementation
procedure TForm1.LoadPDF(const FileName: string);
begin
// Configure the PDF component
Pdf.FileName := FileName;
Pdf.Password := ''; // Set if password-protected
// Activate the view
PdfView.Active := True;
// Set display preferences
PdfView.DisplayMode := dmSingleContinuous;
PdfView.Zoom := 1.0; // 100%
PdfView.Rotation := ro0;
// Enable annotations and smooth rendering
PdfView.Options := [reAnnotations, reNoSmoothText, reNoSmoothImage, reNoSmoothPath];
end;
// Extract text from current page
function TForm1.ExtractPageText: string;
begin
Result := PdfView.Text;
end;
// Search for text
procedure TForm1.SearchText(const SearchTerm: string);
var
FoundIndex: Integer;
begin
Pdf.PageNumber := PdfView.PageNumber;
FoundIndex := Pdf.FindFirst(SearchTerm, []);
if FoundIndex >= 0 then
begin
PdfView.PageNumber := Pdf.PageNumber;
ShowMessage('Text found!');
end
else
ShowMessage('Text not found.');
end;
Use Cases
Document Management Systems: Integrate PDF viewing and manipulation into DMS applications
Report Viewers: Display generated reports and documents
Form Processing: Fill, validate, and extract data from PDF forms
Archival Systems: View and manage archived PDF documents
Educational Software: Display course materials and textbooks
Legal Applications: Review contracts and legal documents
Medical Records: View patient records and medical imaging reports
Invoice Processing: Display and process PDF invoices
Advantages Over Alternatives
Native Delphi Component: True component, not a wrapper or ActiveX control
PDFium Engine: Battle-tested engine used by Google Chrome
No Licensing Fees: No runtime royalties or per-application fees
Full Source Code: Complete Object Pascal source code included
Active Development: Regular updates and bug fixes
Excellent Performance: Faster than many commercial alternatives
Small Footprint: Minimal memory usage and file size
Easy Integration: Drop-in components with comprehensive documentation
System Requirements
Operating System: Windows 7/8/10/11 (32-bit and 64-bit)
Development Environment: Delphi 7 or later, C++Builder 6 or later, RAD Studio 2007-XE8, RAD Studio 10.x-13.x
Runtime Requirements: PDFium DLL (included), standard Windows libraries
Disk Space: 5-15 MB (depending on platform and DLL version)
Memory: Varies based on PDF complexity (typically 10-100 MB per document)
Getting Started
Install the PDFium VCL component package into your Delphi or C++Builder IDE
Add PDFium unit to your uses clause
Drop TPdf and TPdfView components onto your form
Link the components: PdfView.Pdf := Pdf
Set the PDF file: Pdf.FileName := 'document.pdf'
Activate the view: PdfView.Active := True
Support and Resources
Comprehensive HTML Help documentation included
Multiple demo applications with full source code
Technical support via email
Regular updates and bug fixes
Why Choose PDFium VCL?
PDFium VCL Component combines the power of Google’s PDFium engine with the ease of native Delphi VCL development. It provides professional-grade PDF capabilities without the complexity, licensing costs, or performance overhead of traditional PDF SDKs. Whether you’re building a simple document viewer or a sophisticated document management system, PDFium VCL delivers the features, performance, and reliability you need.
With full source code, comprehensive documentation, and extensive demo applications, you can be productive immediately. The component is actively maintained with regular updates to support the latest Delphi versions and PDF standards.
Devoted to developing PDF and Spreadsheet developer library and utilities software, including PDF creation, PDF manipulation, PDF rendering library, and Excel Spreadsheet creation & manipulation library and tools software.