December 2, 2010

Crocodoc – Online Document Markups

Crocodoc is an application that lets users mark up all types of online documents. From highlighting class notes to crossing out sections of a research paper, annotating client reports, and even filling out PDF forms, Crocodoc aims to be the go-to app for everyone’s markup needs. With a free account, users can upload Word documents, PDF files, Power Point presentations, images, and webpage snapshots to be drawn on, highlighted, and annotated to their heart’s content.

Although you can use Crocodoc to upload, view, and share important documents without having to sign up for an account, only registered users get access to the application’s security features and document management tools. Once you’ve gotten signed up and logged in, you can upload any document – up to 20MB in size – to be edited and revised. View a list of all the documents you’ve uploaded on the My Documents page, and click whichever one you’d like to edit. Select whether you’d like to draw, highlight, write, or strikeout the text on your page and then click on the spot where your annotation should appear. For group projects, you can invite collaborators to contribute, simply by clicking the “Share” button and emailing out a special link.

When the work has been done and you’re ready to move on, you can download the file in its original format or as a PDF. Crocodoc also lets you send annotated PDF files to Google Docs, for further collaboration and sharing. Not only that, but Crocodoc makes it possible to embed any annotated page into a website or blog with the click of a button. For anyone who has ever wanted to take notes on a document without having to waste paper by printing it out, Crocodoc is the eco-friendly answer.

Practical Uses:

  • Edit your colleague’s report before it gets sent to a client
  • Share class notes and highlight the most important points
  • Offer your advice on a friend’s website design project
  • Fill out a PDF form sent by your bank without having to print it out

Insider Tips:

  • Upload PDFs, PNGs, JPEGs, Microsoft Word files, and PowerPoint documents
  • Users with registered accounts can upload larger files
  • Create a password to limit access to sensitive documents
  • Share documents by sending out a link, or embed the document on a website

What we liked:

  • Basic features are offered to users who haven’t even registered for an account
  • There are multiple ways to annotate any given file
  • Any document can be downloaded as a PDF file to preserve the annotations
  • Files can be easily shared among friends or coworkers

What we didn’t like:

  • Users can’t upload any files larger than 20MB


Company Info:

  • Launched: February 2010
  • Privately Held
  • Headquarters: San Francisco, California
  • Founded by: Matt Long, Ryan Damico, Bennett Rogers, and Peter Lai
  • Web site:


  • Free accounts


  1. Some of the files I intend to annotate are of a large format, so any idea whether there is any way to bypass the file size limit? I wouldn’t mind paying for the feature, as I really like the idea behind Crocodoc.

  2. What’s the advantage of this vs just using google docs?

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