🚀 Biggest Deal on Black Friday: Get Up to 50% Off and Get Free Gift! Get Deal Now
UPDF User Guide

Get more info about using UPDF

help center
UPDF for Windows
UPDF for Mac
UPDF for iOS
UPDF for Android

Annotate PDF

The Comment tools enable users to add comments to PDF easily. The intention of a written comment describe a point of view, an illustration, an example, or a revelation of reality, mainly demonstrating a reaction or personal attitude. You can easily add, edit, and delete the comments.

UPDF comment tool
Before you get into the detailed guide, you may wonder how you can download UPDF on your devices. Don't worry. Click the button below and install it easily. Besides, we also offer a special discount for you. Upgrade now before the special offer expires.

Next, let us explore how to use these comment tools in UPDF. Alternatively, you can watch the following video guide to learn how to use these annotation tools:

Windows • macOS • iOS • Android 100% secure

1. Add Comments

First of all, click the Comment menu on the top toolbar. You can add three types of comments:

  • Text Comment (Typewriter)
  • Text Box
  • Sticky Note

-Text Comment: In order to add a typewriter, click the T icon, and click anywhere you want to place the typewriter comment. And then begin to type.

text comment

-Text Box: To add a text box, click the T icon with a box, select the style of the text box, and then click anywhere you want to place the text box.

text box with border

-Sticky Notes: To add a sticky note, you need to click the note icon. Then click on your PDF document to place it. Double-click the note icon and type in the note area.

UPDF sticky notes

After adding the comment, you can select it to copy, delete, or view/change the properties.

Video Tutorial on How to Add Annotate PDFs with Ease


2. Text Markups

Another excellent feature that UPDF provides is Text Markups. UPDF provides the following markups:

  • Highlight
  • Strikethrough
  • Underline
  • Squiggly

No matter what type of annotation you've added, you can right-click on it to delete or copy it. Additionally, if you mistakenly add an annotation, you can press Ctrl + Z to undo it.

To add text markups, click the Comment menu on the top toolbar. Choose any of the above markups and place them on your document.

Highlight: To highlight text or passages, you can click the Highlight icon, select the color for highlighting, and select the text you want to highlight. This feature helps you mark important information for memory.

UPDF highlighters

Strikethrough: To add a strikethrough to the text, click the Strikethrough icon and select the text. This feature helps others know that the text has been deleted.

UPDF strikethrough

Underline: Click the Underline icon, select the text, and release your mouse to finish adding the underline.

underline annotation in UPDF

Squiggly: Click the Squiggly icon, select a color, and then drag to select the text you want to add squiggly lines.

squiggly line annotation in UPDF

Video Tutorial on How to Highlight PDF on Windows


3. Pencil and Eraser Tool

If you are looking forward to drawing on a PDF document free hand, you can use the pencil and eraser tool provided by UPDF.

Select the "Pencil" tool on the top menu that will open some personalization options for you before you draw it on the PDF. Select the color, opacity, and thickness of the pencil. You can now draw with your free hand using the cursor.

pen tool in UPDF

Tap on the "Eraser" tool from the top menu and set the thickness of the eraser using the slider. Define if you want to have a "Whole" or a "Partial" eraser. Use the cursor to remove the pencil inscriptions made on the document.

eraser tool in UPDF

4. The Measure Tool

UPDF also supports measuring PDFs, enabling users to learn about their PDF's Distance, Perimeter, and Area. With this information, you can better analyze your PDF's nature, editing it precisely when adding shapes and stickers or creating it from scratch. You can simply allot a specific area to each potential PDF parameter to simplify your editing.

Here is how you can measure PDF with UPDF:

Navigate to the Comment menu and select the last icon on the top toolbar, a measuring scale, and hover on this icon to reveal the following options:

UPDF's measure tools
  • Distance Tool: It reveals information, like the Distance of the specified region, Angle X and Y axis details, Scale Ratio, and Precision of the offered details.
UPDF's distance tool
  • Perimeter Tool: It displays info about the Distance, Perimeter, Angle, X and Y axis details, the Aspect Ratio, and Precision.
UPDF's perimeter tool
  • Area Tool: It offers details for Distance, Area, Angle, X and Y axis details, Scale Ratio, and Precision.
UPDF's area tool

Once you have selected your desired option, you must create a line specifying the region where you want to take measurements.

Once you have set the line, double-click, and the desired info will appear. You can customize its appearance, including color and ratio, to enhance clarity in the document. In addition, you can also delete, copy, and paste the line.


5. Add Shapes

UPDF supports drawing rectangles, ovals, lines, and arrows.

First of all, click the Comment menu to reveal the drawing tools. Then click the Shapes icon and select the drawing tools in the drop-down menu.

  • Rectangle: To add a rectangle to your document, click the rectangle shape, and use the click-and-drag action to draw it on your document.
  • Oval: Click the oval icon and click and drag on your document. You can adjust the shape of the oval anytime by selecting it.
  • Line: Draw a line by clicking the line icon.
  • Arrow: To add an arrow markup, you need to click the arrow icon.

6. Add Stickers

  • As you are present in the "Comment" tab, continue to select the "Sticker" icon from the top menu.
  • With the menu that opens, select any particular category from the left-side panel of the menu. Continue to choose the specific you wish to add within the PDF.
  • Click on the PDF where you wish to add the sticker. You can set the dimensions of the sticker with the rectangular icons available with the sticker.
UPDF stickers

7. Add Stamps

Lead into the "Stamp" icon from the top to open a drop-down menu. UPDF supports 3 methods to create a stamp:

Add Pre-Built Stamps

You can select any specific stamp from the "Stamps" section. After selecting a stamp, click anywhere on the PDF to add a stamp.

UPDF stamps

Import Stamps to PDF

You can also import stamps into your PDF by accessing the "Custom" section in the "Stamp" feature. Click "Import" to browse the appropriate stamp and add it to your PDF successfully.

custom stamp

Note: You can import or create up to 40 stamps.

Create New Custom Stamp

Alternatively, you can create your own stamps here with the provided templates. UPDF provides the options to add date, time, and change color for customizing the stamp.

  • Select the style of the stamp on the new window that opens. Write the text in the available space, which is to be displayed on the stamp.
  • To add the date and time on the stamp, click the icons available adjacent to the "Preview" section. Change the color by clicking on the icon and setting the appropriate background.
  • Once done, click "Create" to add the stamp to the collection.
  • Proceed into the "Stamp" section and select the created stamp to add it to the PDF.
create stamps

8. Add Attachment

Just like you can add Shapes, Stickers, or Stamps, UPDF allows you to add File attachments to any PDF file as a reference to your reader. Consider this the same as adding attachments in a PPT file in office documents.

The process is quite simple; please follow these steps to add an attachment to your document.

  • Open any PDF document file from your device and select the second icon (a Pencil) from the top of the side menu bar in the Comment mode.
  • Choose the Comment mode and then choose the 'Attach File' option, as shown in the image below.
Attach file
  • Here, you can change the outlook of your Attachment Button in the document.
Attachment button
  • After clicking the 'Attachment' menu, click anywhere on the document. This will open the File Manager Browser popup window, allowing you to select a particular document from your device's memory.
  • You can click the Attachment Button placed at your desired location to interact with it. You can open, save, copy, or delete the attached document from this Button.
Interact with attachment
  • You can also add a 'Note' or 'Comment' here as a reference and edit the attachment button as in the initial steps.
  • If you added many attachments to your PDF file, you can click on the "Attachments" icon at the left bottom. Here, you will open a panel to show all the attachments you have in the PDF file and which page they stay. You can click on the "Three dots" at top of each attachment to open, save and delete.
attachement management updf windows

Moreover, you can also add the attachment directly here by clicking on the "+" icon and add the description for each attachment.

Add attachement in the UPDF's attachement management part

With this feature, you can add any supported document for the document readers, such as PPT, PDF, Image, etc.

It is important to note that if you have a PDF attached here, the user can open any PDF document within the UPDF program. Any other attached file or document will open it in its default program.


9. Comment Properties

You can also set the properties while commenting on your PDF file. You can change the text color, border color, and font attributes as well. You can change the properties by right-clicking on the annotations or selecting the Properties from the context menu.


10. Undo/Delete Annotations

Once the annotations are applied to your documents, you can undo/delete them. To undo any changes, use the keyboard shortcut CTRL + Z to undo the annotations.

You can delete it with the help of a mouse. Right-click on the annotation and hover the cursor on the Clear or Delete option.

% OFF
$  
  OFF
You can use this limited time coupon to purchase designated UPDF PRO or AI products.

Black Friday!
The biggest deal of the year!

Get and Save Now
Extra {couponPrice}% off coupon Extra ${couponPrice} coupon

We use cookies to ensure you get the best experience on our website. Continued use of this website indicates your acceptance of our privacy policy.