Refer friends to earn FREE UPDF license for both you and your friend. Go and invite now!

The complete PDF solution across all platforms

  • Read, edit, and annotate PDFs.
  • Convert PDFs accurately with OCR.
  • Protect, manage, and share PDFs with ease.

Windows • Mac • iOS • Android

blog banner

How to Add Stamp to PDF Quickly

In today’s connected world, the concerns about piracy are legitimate. But thanks to PDF stamp, you can rest assured knowing that your information remains safe and secure. PDF stamps are electronic measures embedded into PDF documents. These stamps allow you to trace back the origin of a leaked copy of your file, making it easier to identify who has access to your documents and report them accordingly.

Part 1: What is a PDF Stamp?

PDF stamps are a great tool for protecting documents. Using a stamp is a simple way to add a status to a document. They can be used to create custom PDF statuses that include a logo, company name, contact information, or even a unique identifier.

1-1: What is Dynamic Stamp in PDF?

Dynamic stamps enable you to add a personalized touch to business documents such as contracts or invoices. They also allow you to include additional information, such as signatures, names, dates, or logos. These stamps are created by adding form fields such as text boxes to an existing PDF Stamp. Adding these fields during the creation of the stamp flattens them out, which means the fields are no longer part of the stamp file. This makes it impossible to edit them later.

1-2: What Does Stamp Mean in PDF?

Stamps are useful tools for organizing documents and keeping track of their status. Using stamps provides a quick summary of the document’s status. For example, they can indicate whether a report was submitted or accepted for publication, whether it’s confidential, or whether it requires special handling or review before being released

Part 2. How to Add Stamp to PDF on Mac

If you are a Mac user, you can also insert stamps in PDF with UPDF- free PDF editor. It allows you to view, edit, annotate and manage PDF files without limitations. More importantly, it provides many stamps and stickers, helping you make annotations on PDF with ease. Try UPDF today!

To add a stamp to PDF on Mac, you can follow the below steps.

Step 1. Launch UPDF

You need to download UPDF for Mac and then open your PDF file with it.

open pdf

Step 2. Access the Comment Option

You can click the “Comment” button on the top toolbar.

add stamp to pdf

Step 3. Insert Stamp to PDF

Now you can tap on the “Stamp” icon on the top menu and then select one of the stamps to add. Here are many types of PDF stamps you can choose. You can get UPDF from the below button to try it now!

insert stamp to pdf mac

Part 3: What are the Main Types of PDF Stamps in UPDF?

If you want to add a label to your PDF file without modifying the original content of your PDF, you can add different stamps. If you are giving verification, approval, confirmation, or rejection to a particular PDF file, you can add the respective stamps with a single tap. Following are the common types of stamps that you can add through the UPDF tool easily:

  • Revised: If you have made some changes to a PDF file or an application, you can add the Revised stamp. It will indicate that you have added some modifications to your document.
  • Reviewed: You can add the reviewed stamp when you have reviewed a document for final submission.  
  • Received: Instructors or head of departments in a particular organization uses the Received stamp in various situations. For instance, if they have received a roll number slip or test application of a student.
  • Approved: Approved stamp represents the confirmation and acceptance of a particular document.
  • Not Approved: This stamp indicates the rejection of a particular document or an application.
  • Confidential: A Confidential stamp is used for documents that contain sensitive information. It will represent the confidentiality level of a particular file.
  • Witness: Witness stamp authenticates the testimony of a witness mainly used in federal law courts.
  • Initial Here: This stamp is widely used in documents where the individual needs to write his first name in upper case letters.
  • Sign Here: Through this stamp, the individual is usually asked to write his signature on the document.
  • Draft: A Draft stamp represents a rough or unauthentic document. It means that the particular PDF has a possibility for edits.
  • Final: A Final stamp represents the final version of a document. It indicates that the particular document is ready for a final release.
  • Completed for Public Release: This stamp is used in public documents such as media briefings or official government notifications. It indicates that the document is ready for the public.
  • Not for Public Release: This stamp represents that a certain document is not ready for an official release and public use.
  • For Comment: If you want to add suggestions, reviews, or comments on a specific personality in a particular document, this stamp is used.
  • Void: Void stamp nullifies and cancels a specific application, service, or shipment.
  • Preliminary Results: If you want to show the initial release of particular results, you can use the Preliminary Results stamp.
  • Information Only: This stamp indicates that the particular document is released to provide information only. You cannot use it for official or printing purposes.

Part 4: How to Create a Custom Stamp in PDF?

Stamps in a PDF file give a unique and vibrant look. Many people like to add stamps to their PDF files to provide a unique label for verification or approval purposes. If you want to create a customized stamp in a PDF file, UPDF can help you. Through this tool, you can add and create colorful stamps to your PDF files with a few clicks. To create a customized stamp in PDF, read the below steps:

Step 1: After you upload the PDF file and enter the Comment mode, you can click on the "Stamps" option and then on the "Custom" tab and select the "Create" button.

custom pdf stamp

Step 2: Custom Stamp

You can choose the shape of your stamp, date, and time style from the given options. You can also add the desired text in the given box.

customize pdf stamp

Besides, it also allows you to customize the color of the stamp. Once done, tap on the “Create” button to craft a customized stamp. After creating the stamp, you can easily add it to your PDF file. Try UPDF now!

add custom pdf stamp

Part 5: What’s the Difference Between PDF Stamp and Watermark?

A watermark is a logo, text, or template which is intentionally overlaid on another image. It is affixed behind visible information to make it more difficult to copy or use the original picture without authorization.

The stamp lets you tag the document with important information, such as the approval status of the document or the level of confidentiality. They can be more easily dimensioned and positioned to fill a title block in different drawing formats. Stamps are affixed to visible information.


The best way to document your intellectual property is to make sure the document is secure, identifiable, and based in the first person. Your PDF document may now be a victim of the increasingly rampant piracy problem. You will not be able to enjoy the peaceful and legal use of the document if you do not add a PDF stamp to it. So try UPDF today to add or custom PDF stamp with ease.