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

Use the Azure Key Vault API to sign 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.

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

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

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 PDF Document API to apply multiple PKCS#7 signatures with X.509 certificates.

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

Access and modify custom document properties.

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

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

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

Add a link to a URI at the specified link area on a document page.