Password protection and encryption are two large selling points when it comes to why people choose PDF file formats. If you're handling sensitive or important information, it only makes sense to protect it. You want to keep others from accessing and/or tampering with them. In this article, w...
Preview is a built-in Mac app that protects private documents by locking them behind a password. Its simple-to-use interface lets you add a password to your PDFs with just a few clicks. Here is a guide on how to make a PDF password-protected on a Mac using Preview: Step 1. Open P...
Add password to PDF to protect sensitive information. Secure your PDF file by setting a password online. Easy service with a clear interface.
Function creates new temporary pdf file with same content, assigns given password to pdf and rename it with original file. temporary output file with name same as input file but prepended by "encrypted_", inside same direcory as input file. ...
Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication. ...
Here's an example of adding Watermark to PDF using PDFSHarp.You can refer to the following code:prettyprint 复制 Const watermark As String = "your content" Const emSize As Integer = 150 Const filename As String = "your pdf path" Dim font As XFont = New XFont("Times New Roman", ...
Step 1: Open PDF in PDFelement Launch PDFelement and open your PDF file. Click "Edit" at the top of the software window and then the "Add Image" icon in the toolbar below it. Then you can place your mouse on the area you want to insert the image. ...
Method 1: How to Add Link to PDF without AcrobatStep 1. Open a PDF FileLaunch PDFelement by double-clicking the quick-start icon on the desktop. Open your PDF document by clicking the "Open files" button on the home page. Alternatively, you can drag and drop the file into PDFelement....
Depending on how you save your PDF after adding the watermark, there may be some loss in quality or resolution of the file. Now you know how to watermark a PDF without using Adobe Acrobat. Try it out today and also ensure all your essential documents are password protected. Method 3. ...
Create a PdfRubberStampAnnotation object and set the template as its appearance. Add the stamp to a specific PDF page using PdfPageBase.Annotations.Add() method. Save the document to a different PDF file.C# 01 using System.Drawing; 02 using Spire.Pdf; 03 using Spire.Pdf.Graphics; 04 usi...