Annotate PDF Online

Upload and start working with your PDF documents.
No downloads required

How to Use Online PDF Annotator?

Upload & Edit Your PDF Document

Save, Download, Print, and Share

Sign & Make It Legally Binding

PDF Annotator Overview

Today more and more people take advantage of creating and filling digital documents. They are much easier to handle in comparison with their hard copies. The scanned files in PDF are always at hand on your device that gives you an opportunity to send and share them even when on the go. Preparing some forms you may have questions to a particular section or may want a feedback from a recipient. For this purpose you should leave a comment near a certain piece of the content. In the past you probably had to print out a paper and write comments by hand. However, today there are multiple streamlined editors that allow you to annotate your files online. Find out how to use them referring to the short guide below.

Choose the Best PDF Editor for Annotation

Nowadays there is a great deal of different editing tools. However, we offer you to take advantage of online services which are very convenient and user-friendly. You don't have to download any additional applications to annotate. Moreover, they are available for any device, such as a computer, smartphone or tablet. You can comment your text effortlessly anytime and anywhere. The only thing you need is a good internet connection. Most of such digital services can be applied for free. Just upload your PDF sheet to the account and start working with it.

Common Steps to Add Comments to PDFs

If you opt for digital tools, the process of adding annotations will be a breeze for you. The procedure requires only a few easy steps:

upload your PDF paper to an account;
choose what you want to add, i.e. a text box or a sticky note;
then click where you need to type your comment;
change the font style, color and size, if necessary.

You also have an ability to resize your text boxes and sticky notes. For this you just need to drag their edges or corners.

What's Included?

Redact & review PDFs online
Convert files to and from PDFs
Fast & Secure
No Downloads. No Installations. Try Now!

What Our Customers Say

Deborah W.

I corrected a mistake in my form and replaced it with the right information. It took a few minutes only! Thanks a lot!

James S.

The process of PDF correction has never been so easy. I’ve managed to create a new document faster than ever before!

William G.

It was really easy to fill out my PDF document and add a signature to it! This is a great service! I recommend it to you!

Denis B.

I edited the document with my mobile phone. It was fast and, as a result, I’ve got a professional-looking document.

Supporting Forms

Submit important papers on the go with the number one online document management solution. Use our web-based app to edit your PDFs without effort. We provide our customers with an array of up-to-date tools accessible from any Internet-connected device. Upload your PDF document to the editor. Browse for a file on your device or add it from an online location. Insert text, images, fillable fields, add or remove pages, sign your PDFs electronically, all without leaving your desk.

FAQ

What are the best PDF annotation tools in Ubuntu Linux?

I had been looking for a pdf annotation tool in Linux for a long time, here are my needs:highlight textinsert text commentdraw rectangle around textdraw oval around textcompatible with Adobe Acrobat, I mean, its annotations can be deleted or modified by Adobe Acrobat and vice versa.with search capacityfast response for large pdf document with up to a thousand pagesbetter has Windows version though not very importantI had tried Evince, Xournal, Okular, Adobe Reader, Foxit Reader, until I found Qoppa Software and PDF Studio (Qoppa Software) which completely meets my needs. Both old version of Adobe Reader and Foxit Reader run in wine, and I think you will not be satified with them. Here I compare the other four pdf software.Evince: a perfect pdf viewer but without annotation capacityXournal: treat each page as an image, so you are drawing on an image, and it doesn’t support search and is not compitable with Adobe AcrobatOkular: perhaps the best free pdf annotation tool in Linux, it supports 9 ways to annotate, limited but enough, one major flaw is that once you made an annotation, you cannot adjust its position or size any more.PDF Studio: a tool comparable with Adobe Acrobat, written in Java, cross platform, so you can use it under Linux, Windows and Mac.You can see the comparison between PDF Studio and Adobe Acrobat at Compare PDF Studio with Acrobat and other PDF annotating software. PDF Studio is commercial software and have a free trial PDF Studio Free Download.

What are Slack's competitors?

I’m not sure these count as direct competitors (especially since they all have Slack integrations), but, to me, apps like Trello, RocketBolt, and Zendesk at least dip their toes into grabbing some of Slack’s prime user market share.Basically, any app that support team communication for a more specific part of your company’s workflow has the potential to pull eyeballs away from Slack.My company started out as big Slack users. Once we began using Trello, we started communicating about team projects inside there, and our Slack usage decreased. Then we switched to RocketBolt for our CRM and started using it to communicate about sales, so Slack usage dropped again. Plus, all our Customer Support still runs through Zendesk (tried to pipe it into Slack, but it just didn’t work as well).These days we mostly use Slack for inter office chatter, and more of the “real work conversations” happens inside other platforms.That being said, we’re not going to be canceling our Slack accounts anytime soon, so I guess these other apps aren’t competitive in a “use one or the other” sense. But they are pulling away Slack mindshare and usage within our company.

What is a good website for free books?

Edit Oct 2014: http://booksee.org and http://bookzz.org seem to be the two working versions now. Edit July 2014: Bookfi is gone, but http://bookzz.org seems to be the official clone now. Edit April 2014: bookza is down, but /, another clone of bookOS/za is up now! Also, is another clone. These just pop up!Edit January 2014: http://bookza.org is a functional clone of bookos that's live today!Edit December 2013: Unsurprisingly bookos seems down for good now. At the moment, it seems http://en.bookos.org/ is unbeatable. Direct downloads, amazing selection, no ads, etc... prolly won't stay up for too long though.

Does adding user's annotations to a publisher-copyrighted academic paper PDF count as derivative work that I could post online? Or will I get takedown notices?

It is not a derivative work. I don't know for sure that you'll get in trouble, but you'll be safer if you just link to it if you want to comment on it.If it's your own work that a publisher has copyrighted, read the paperwork you signed when submitting it. Many publishers actually allow the author to post a copy to their own website (sadly, not very many authors take advantage of that). If it's your own you can also post a pre-publication/unedited version.Some people also privately e-mail copies or link to files on DropBox, but that won't work if you want to post to a blog or something (though I'm not sure why you would want/need to - even if you're critiquing you can summarize the argument they make and then continue with your critique).

What is the best free online PDF editor?

Sejda.com is a free online platform for PDF editing: splitting by pages, by size, by text, by table of contentsmerging and reordering pagesrotating protecting pdf files and removing protectioncompressing pdfsapplying page numbers and header/footerconverting PDF to JPG imagesextracting textSejda is open source software. I am one of the developers.

What are some interesting repositories on GitHub that can be used for journalistic purposes?

Good examples would be: Timeline JS, a great timeline visualisation tool that can be easily managed via Google Spreadsheets and embedded in any website. TimelineJS Open Budget, a visualization web app for hierarchical budgets, open-budgetWordPress Post Forking, a plugin that adds GitHub logic to WordPress, https://github.com/benbalter/post-forkingCartoDB Torque, a toolkit for mapping time-related big data sets. torqueKartograph.js, simple and lightweight framework for building interactive map applications. kartograph.jsLuminous Flux, the article, rethought. lfluxReal Time Map. real-time-mapDatawrapper, simple yet powerful tool for data visualisations. datawrapperSuperscrollorama, jQuery plugin for creating parallax pages like the now-famous NYT feature «Snow Fall», superscrolloramaMake sure to have a look at newly launched Source, which is doing pretty much the same as this thread here. They collect code for journalism. https://source-dev.mozillalabs.c...

Are there any PDF editors for the new iPad?

There is a new tool called Sqribble eBook Creator Studio .This is a very recent one and it has huge features. You can create an amazing pdf using few clicks and it does not need to install.Just watch this video and it shows how easy is this.Sqribble eBook Creator Studio