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UPDF User Guide

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Annotate PDF

The Comment tools enable users to add comments to PDF easily. The intention of a written comment describes 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 tools

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.

add a typewriter to pdf

-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.

add a text box to pdf with updf

-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.

add sticky notes to pdf with updf

Video Tutorial on How to Add Comments to PDF


2. Text Markups

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

  • Highlight
  • Strikethrough
  • Underline
  • Squiggly

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.

highlight pdf with updf

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.

strikethrough pdf with updf windows

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

underline text in pdf with updf for windows

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

squiggly with updf for windows

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.

using pencil in pdf

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 on windows

4. 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.

5. 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.
add stickers to pdf with updf

6. 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.

create a stamp

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.

import a stamp

Create New Custom Stamp

If you wish to add a customized stamp, proceed to the "Custom" tab and click "Create" if you wish to design a 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 a custom stamp

7. 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.

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.


8. 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.

change comment properties

9. 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.

delete annotations from pdf

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