By uploading your files or using our service you agree with our Terms of Service and Privacy Policy.

We have already processed 26,562 files with the total size of 22,966 MB

Annotation is a lightweight and powerful software which allows everyone to seamlessly modify documents with the capability to annotate them. Annotate your document completely free on any OS and platform using just your browser.

With Annotation software powered by GroupDocs you are allowed to annotate documents, leave comments, draw figures, calculate distances, highlight and mark up documents. With our annotator you can do it on PDFs, text documents, diagrams, excel sheets, presentations, images and even CAD files. The most popular annotation examples are highlighting, underlying, striking out text, adding watermarks and polylines.

Video tutorial

How it works

How to annotate PPTX documents online

Step 1

Click inside the file drop area to upload a PPTX file or drag & drop a PPTX file.

Step 2

File will be automatically rendered for you to view instantly.

Step 3

Add annotations to the document.

Step 4

Download the annotated version of your PPTX file.

FAQ

Questions & Answers

How can I annotate PPTX document?

First, you need to upload a file: drag & drop your PPTX file or click inside the white area to choose a file. Then you will be redirected to the annotation application.
How fast can I start annotating PPTX document?

The annotation app works fast. Typically it takes a couple of seconds to open a PPTX document and prepare it for adding annotations.
Is it safe to annotate PPTX files using this Annotator?

Of course! The preview files will be available instantly after the file uploaded. We will delete the uploaded file after 24 hours.
Can I annotate documents PPTX on Linux, Mac OS, or Android?

Yes, you can use our annotator on any operating system that has a web browser. Our PPTX Annotation App works online and does not require any software installation.
What browser should I use to annotate PPTX documents?

You can use any modern browser to annotate PPTX documents, for example, Google Chrome, Microsoft Edge, Firefox, Opera, or Safari.

More apps

Annotate PPTX Online

Annotate, Comment and Tag your PPTX file for Efficient Collaboration Online for Free

About Annotation app

How to annotate PPTX documents online

Questions & Answers

Annotate PPTX Online

Annotate, Comment and Tag your PPTX file for Efficient Collaboration Online for Free

About Annotation app

How to annotate PPTX documents online

Questions & Answers

GroupDocs online applications

Select a language