Make viewing faster with linearized PDFs. Documents properties include metadata, compression, and font embedding behavior. Restrict printing, copying, and PDF editing.
Create AcroForm fields include textbox, checkbox, radio button, combtext, combo box, list box, and buttons.
Review the basics of rendering text in GcPDF (DrawString and DrawTextLayout), character formatting, paginated text, text trimming, word, character wraps, and much more.
Create text links to a URL and add outline entries. Link thumbnails to full-sized images, article threads, and destinations.
Generate pages of slides from all images in a directory and extract images from PDF documents.
Convert HTML files or strings to PDF, or add HTML fragments to PDF documents along with other content.
Load existing PDF into GcPdfDocument and see how text, paragraphs, and tables can be inspected or extracted.
Extract whole logical structure of the PDF document, parsed the tags, glean the data that needs to be extracted.
Completely remove content from PDF documents, including quadrilateral and polygonal redaction areas.
Digitally sign PDFs, inspect signature properties, or remove existing signatures. Add Image signatures to PDF Documents.
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.
Save a PDF as a multi-page TIFF, JPEG, PNG, GI, or BMP image to save space and open easily.
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 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 can be opened through the password input dialog.