PDFio is a simple C library for reading and writing PDF files.

Use the Office File API to create thumbnail images for Excel, Word and PDF documents.

Implement a PDF viewer in an ASP.NET MVC web application.

Use the Azure Key Vault API to sign a PDF document.

Use a PdfGraphics object to add interactive form fields to a PDF document.

Extract the text of a PDF document and count the words' occurrences in a document text.

Customize print output and specify settings for a specific document page.

Obtain a checked appearance name for a check box and specify the check box value.

Use the PDF Document API to rotate document pages and save the result.

Use the PDF Document API to embed XMP metadata in PDF documents.

A pdf document toolkit which splits, extracts and merges specified pdf files. Deployed with Flask and accessible via Web UI.

Create a custom timestamp client based on the Bouncy Castle C# API.

Implement a custom signer based on the Bouncy Castle C# API and use a custom digest calculator to calculate a document hash.

Use the PdfDocumentProcessor to add a visual signature to a document.

Use the PDF Document API to create a document with graphics in code.

Access and modify custom document properties.

Export a PDF document to multi-page Tiff and bitmap images.

Implement a PDF viewer in an ASP.NET web application.

Extract the first page from a PDF document into a separate document.

Create an interactive form field (a list box field) and add it to a PDF document.