Document Properties
Make viewing faster with linearized PDFs. Documents properties include metadata, compression, and font embedding behavior. Restrict printing, copying, and PDF editing.
Font
Create, initialize, and use the Font Collection class to manage and use when rendering texts.
Annotations
Create, edit, or delete annotations from existing PDF documents. Several annotations are supported from PDF specifications.
Form Fields
Create AcroForm fields include textbox, checkbox, radio button, combtext, combo box, list box, and buttons.
Text
Review the basics of rendering text in GcPDF (DrawString and DrawTextLayout), character formatting, paginated text, text trimming, word, character wraps, and much more.
Advanced Text
Design magazine style, multi-column page layouts with balanced columns and outlines. Multi-language text is supported, including RTL, east-Asian languages, and vertical text.
Navigation
Create text links to a URL and add outline entries. Link thumbnails to full-sized images, article threads, and destinations.
Images
Generate pages of slides from all images in a directory and extract images from PDF documents.
Graphics
Use linear and radial gradient brushes.
HTML to PDF
Convert HTML files or strings to PDF, or add HTML fragments to PDF documents along with other content.
Barcodes
Render samples of all barcode symbologies supported by the GcBarcode library.
Tags
Create tagged (structured) PDFs and attach them to individual paragraphs.
Extract
Load existing PDF into GcPdfDocument and see how text, paragraphs, and tables can be inspected or extracted.
Read Structure Tags
Extract whole logical structure of the PDF document, parsed the tags, glean the data that needs to be extracted.
Attachments
Attach photos, text, drawings, PDFs, and other file types (including AcroForm) to a PDF. If you move the PDF to a new location, the attachments move with it.
Redaction
Completely remove content from PDF documents, including quadrilateral and polygonal redaction areas.
Signatures
Digitally sign PDFs, inspect signature properties, or remove existing signatures. Add Image signatures to PDF Documents.
Merge Pages
Combine and organize multiple documents into one PDF–making it simple to share and send render pages of one PDF to another.
Page Headers
Print page headers and footers in PDF documents. Organize pages by headings to help users get a sense of the page’s organization and structure.
PDF to Images
Save a PDF as a multi-page TIFF, JPEG, PNG, GI, or BMP image to save space and open easily.
Security
Encrypt or decrypt PDF Documents. When a document is encrypted, its contents become unreadable. An authorized user can decrypt the document to obtain access to the contents. If a PDF document is password encrypted, the user must enter the password in order to view the document.
ZUGFeRD Compliant
ZUGFeRD is a standard for electronic invoices in PDF/A format and based on the ISO standard. Create ZUGFeRD 1.x compliant invoices and read ZUGFeRD data from existing PDFs.
Password-Protected PDF Files
Password-protected PDF files can be opened through the password input dialog.
Miscellaneous
Check out even more great features of GcDocuments for PDF Viewer
Quick Start
This quick tutorial walks you through creating a simple "Hello, World!" app that uses GcPdf to generate and save a PDF file.
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