Fast and accurately render documents in your browser. View PDFs with a flexible and fully customizable UI.
Thumbnails
High Fidelity
Page Scrolling
Dark Mode
Search and Selection
Presentation Mode
Download
Annotations
Create, edit, import, and export notes. More than 10 tools are supported, including highlight, underline, ink, etc.
Create Annotations
Customize Annotations
Import and Export Annotations
Forms
Create, view, and fill out PDF forms easily and smoothly. Support Text Fields, Check Boxes, Radio Buttons, Buttons, Combo Boxes, and more.
Text Field
Check Box
Radio Button
List Box
Combo Box
Button
Signatures
Create kinds of signatures with a fingertip, stylus, mouse, image, and keyboard, and add signatures to your document workflows efficiently.
Drawn
Image
Typed
Security
Set passwords and permissions to protect your PDFs with the RC4 encryption method. Add watermarks to identify you as the owner or author.
Encryption
Decryption
Watermark
Compare Documents
Compare PDFs in detail by checking every character for differences. You can view two PDF documents side by side or overlay them to see the changes. The differences will be highlighted and listed for easy reference.
Content Comparison
Overlay Comparison
Content Editor
Try ComPDFKit Content Editor to add, remove, and edit the text, images, and properties of PDF files. Allow modifying the current content in PDFs and support inserting new text boxes and images.