C#/VB.NET – How to Print Preview PDF in WinForms

Before you send a PDF document to printer, you may want to preview the printing result in advance. In this article, you will learn how to print preview a PDF document in a Windows Forms application by using PrintPreviewControl and Spire.PDF for .NET. Create a Windows Forms Application The Windows Forms application simply consists of …

C#/VB.NTE – Add Text Watermark to PDF Documents

A watermark is a text or image that appears in front of or behind existing content in a document. It is often used to prevent your document from being used illegally. In this article, I am going to introduce how to add one-line or multi-line text watermark to PDF in C# and VB.NET using Spire.PDF …

C#/VB.NET – Split a Single PDF Page into Multiple Pages

In a certain circumstance, you may get a scanned PDF document that has a very large page size, which prevents you from reading it comfortably. It is a good practice that you divide the large page into two or more smaller pages. In this article, I am going to introduce how to split a single …

C#/VB.NET – Extract All Tables from a PDF Document

Sometimes you may need to extract table data from PDF documents. For example, there is some useful information stored in the tables of a PDF invoice and you want to extract the data for further analysis. In this article, I am going to introduce how to extract data from all tables in a PDF document …

C#/VB.NET – Sign a PDF with a timestamp

If you have a time-sensitive document or you just want to prove that you completed a document on a certain date, you cloud sign your PDF document along with a timestamp. In this article, you’ll learn how to programmatically embed a timestamp when adding digital signatures to PDF using Spire.PDF for .NET. Install Spire.PDF Download …