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Hypothesis - Web & PDF Annotation

220 ratings

64 support issues

For additional help, check out the developer's support site.

• Suggestions

Shawn Roloff

May 13, 2024

Trying to get Hypothesis approved for my district

We are trying to get Hypothesis approved for my district but we need your DPA uploaded to our system. Is there a way to get this done os our teachers can use your system next year?

Natalya Sysoeva

Feb 13, 2024

Problem with delete highlight

Hello, My colleague and I can't delete the selection (highlight): we try to click the "Delete" button, but nothing happen. The window froze. When we try to click the "Cancel" or "Close" button in this windows, nothing happens either. Can you help us to fix the problem?

Joseph Dombo

Jan 21, 2024

Extension problems

Please I have a problem installing Google extension on my phone

Sergio Bossa

Nov 5, 2023

Chrome extension doesn't work anymore

Hello, I noticed in the last month or so the Chrome extension doesn't work most of the time: I click on it and nothing happens. No errors are registered either in the console. Any help?

Matt Hodgman

Sep 4, 2023

Re: configuring Hypothesis for my course

My students keep telling me that they see a message on their end saying that they are not configured to use hypothesis within my asynchronous online writing course. The hypothesis content in my course was uploaded by a tech expert at my institution, not by myself. My students cannot perform the hypothesis related work for the course because they do not appear to have access to it. How can this be addressed? How and where am I able to grade my students' submitted Hypothesis assignments? Thanks, Dr. Matt Hodgman (Stevenson University)

Kimberly Bright

Aug 28, 2023

Very Confusing

I do not know how to navigate around your website its not giving me straight forward answers on how to download or what's the next steps in getting to the right answer with your software. I did sign up for hypothesis but it is very confusing to me on how to use it and what I am going to need it for.

Joshua Hightower

Jul 18, 2023

I know this is going to sound silly but how do I actually use this? .

I right-click on something I want to highlight but I see no option to do anything with the highlighted text. I am signed in to the extension. A step-by-step guide would be useful as I don't see any instructions. Like, what buttons do I hit to do what. Where does the information go when I highlight it and how do I access it?

Jan 31, 2023

Annotated document

Is there any way to download my annotated/highlighted document where it will show all my edits? I click the download button for my document and it only gives me the non-edited document.

Colleen Powell

Jan 25, 2023

Trouble installing Hypothes.is

A class I'm taking is using Hypothes.is. I can't get it installed on my Dell Windows 10 lap top. Help please,

Sriparna Saha

Dec 1, 2022

Notifications do not work

We use Hypothesis extensively for reviewing content on beta sites. It is super-useful. The only pain is that we need to inform the writer after we add comments to look at the comments. The notifications only work when someone replies to the comments. Is there a fix or setting to let the author notify when a comment is added?

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Hypothesis - Web & PDF Annotation for Google Chrome

• V  1.1515.0.2 (Official Build)

Security Status

Softonic review

Hypothesis - Web & PDF Annotation

Hypothesis is a free web and PDF annotation tool that allows users to collaboratively annotate, highlight, and tag web pages and PDF documents. With Hypothesis, users can hold discussions, read socially, organize their research, and take personal notes on webpages, PDFs, and EPUBs.

The platform provides a seamless and intuitive user experience, making it easy for users to annotate and highlight important information on web pages and PDF documents. The annotation tools are comprehensive, allowing users to add text, highlight text, and draw shapes to emphasize specific points.

One of the standout features of Hypothesis is its collaborative functionality. Users can invite others to join their annotations, enabling real-time discussions and collaboration on documents. This makes it a great tool for teams working on research projects or for educators and students to engage in interactive learning.

Overall, Hypothesis is a powerful and versatile tool for web and PDF annotation. Its user-friendly interface and collaborative features make it an excellent choice for individuals and teams looking to enhance their research and reading experience.

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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.

In Softonic we scan all the files hosted on our platform to assess and avoid any potential harm for your device. Our team performs checks each time a new file is uploaded and periodically reviews files to confirm or update their status. This comprehensive process allows us to set a status for any downloadable file as follows:

It’s extremely likely that this software program is clean.

What does this mean?

We have scanned the file and URLs associated with this software program in more than 50 of the world's leading antivirus services; no possible threat has been detected.

This software program is potentially malicious or may contain unwanted bundled software.

Why is the software program still available?

Based on our scan system, we have determined that these flags are possibly false positives .

What is a false positive?

It means a benign program is wrongfully flagged as malicious due to an overly broad detection signature or algorithm used in an antivirus program.

It’s highly probable this software program is malicious or contains unwanted bundled software.

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• Mobile Apps and Browser Extensions

Hypothesis Browser Extension/Bookmarklet

Mobile apps and browser extensions: hypothesis browser extension/bookmarklet.

• AccessMedicine App
• ClinicalKey App
• LibKey Nomad Browser Extension
• Thieme MedOne App

What it does

Hypothesis is an annotation tool for websites. You can also annotate pdfs when viewed in your browser. Download as either a browser extension (for Chrome) or bookmarklet (for other browsers), sign up, log in, and start annotating the web.

This is a great resource for annotating ebooks or other e-content from the library. Just keep in mind that access to library resources ends when you are no longer part of our campus community.

Of note: this tool is integrated into AccessMedicine and AccessPhysiotherapy. When in a chapter, click annotate to prompt Hypothesis to open. See the example below.

How to set it up and use it

Step 1 - Create a free account

Sign up at  https://hypothes.is/signup .

Step 2 - Add either the browser extension or bookmarklet.

From https://web.hypothes.is/start/ , you can install either the Chrome browser extension or add the bookmarklet to your preferred browser.

Step 3 - Start annotating.

Sign into your account. Then go to any page (or open a PDF in your browser), select text, and annotate.

Step 4 - Want to use on mobile devices? (Optional)

Follow these instructions:  https://web.hypothes.is/help/how-to-use-hypothesis-on-mobile-devices/ .

• << Previous: ClinicalKey App
• Next: LibKey Nomad Browser Extension >>

• for Firefox
• Dictionaries & Language Packs
• Other Browser Sites
• Add-ons for Android

Hypothesify by Jan Odstrcilik

This add-on is not actively monitored for security by Mozilla. Make sure you trust it before installing.

Hypothesify is a Firefox extension for the annotation tool Hypothes.is . It can start and close a selected webpage or a PDF document in Hypothes.is , it checks for public annotations and it generates codes in html, markup, :hiccup for Roam etc..

Extension Metadata

• It can show a number of public annotations for a selected website before you open it in Hypothes.is . ⚠ Please, note that if you choose this option, every URL goes through the servers of Hypothes.is .
• It can open and close a selected webpage or a PDF document in Hypothes.is .
• It generates a code that you can send to your friends, include in your Note app or integrate into your webpage. To copy the code, click on the generated code panel and press CTRL+C (Windows and Linux) or CMD+C (MacOS).
• a simple link 🔗
• "a" HTML element with @href attribute Markdown code in the format []()
• "iframe" HTML element (for inclusion of the whole webpage as iframe)
• hiccup iframe code for inclusion of the webpage into Roam 🧠
• Its public API for obtaining the number of public annotations for any selected webpage.
• Its via proxy that opens any webpage or PDF document in Hypothes.is .
• v.1.0, 26th April 2020 - first version

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This add-on needs to:

• Access browser tabs
• Access your data for all websites
• Support Email
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• First-party extensions
• Edit on GitHub

First-party extensions ¶

Hypothesis has minimal dependencies, to maximise compatibility and make installing Hypothesis as easy as possible.

Our integrations with specific packages are therefore provided by extra modules that need their individual dependencies installed in order to work. You can install these dependencies using the setuptools extra feature as e.g. pip install hypothesis[django] . This will check installation of compatible versions.

You can also just install hypothesis into a project using them, ignore the version constraints, and hope for the best.

In general “Which version is Hypothesis compatible with?” is a hard question to answer and even harder to regularly test. Hypothesis is always tested against the latest compatible version and each package will note the expected compatibility range. If you run into a bug with any of these please specify the dependency version.

There are separate pages for Hypothesis for Django users and Hypothesis for the scientific stack .

hypothesis[cli] ¶

This module requires the click package, and provides Hypothesis’ command-line interface, for e.g. ‘ghostwriting’ tests via the terminal. It’s also where HypoFuzz adds the hypothesis fuzz command ( learn more about that here ).

hypothesis[codemods] ¶

This module provides codemods based on the LibCST library, which can both detect and automatically fix issues with code that uses Hypothesis, including upgrading from deprecated features to our recommended style.

You can run the codemods via our CLI:

Alternatively you can use python -m libcst.tool , which offers more control at the cost of additional configuration (adding 'hypothesis.extra' to the modules list in .libcst.codemod.yaml ) and some issues on Windows .

Update a source code string from deprecated to modern Hypothesis APIs.

This may not fix all the deprecation warnings in your code, but we’re confident that it will be easier than doing it all by hand.

We recommend using the CLI, but if you want a Python function here it is.

hypothesis[dpcontracts] ¶

This module provides tools for working with the dpcontracts library, because combining contracts and property-based testing works really well .

It requires dpcontracts >= 0.4 .

Decorate contract_func to reject calls which violate preconditions, and retry them with different arguments.

This is a convenience function for testing internal code that uses dpcontracts , to automatically filter out arguments that would be rejected by the public interface before triggering a contract error.

This can be used as builds(fulfill(func), ...) or in the body of the test e.g. assert fulfill(func)(*args) .

For new projects, we recommend using either deal or icontract and icontract-hypothesis over dpcontracts . They’re generally more powerful tools for design-by-contract programming, and have substantially nicer Hypothesis integration too!

hypothesis[lark] ¶

This extra can be used to generate strings matching any context-free grammar, using the Lark parser library .

It currently only supports Lark’s native EBNF syntax, but we plan to extend this to support other common syntaxes such as ANTLR and RFC 5234 ABNF. Lark already supports loading grammars from nearley.js , so you may not have to write your own at all.

A strategy for strings accepted by the given context-free grammar.

grammar must be a Lark object, which wraps an EBNF specification. The Lark EBNF grammar reference can be found here .

from_lark will automatically generate strings matching the nonterminal start symbol in the grammar, which was supplied as an argument to the Lark class. To generate strings matching a different symbol, including terminals, you can override this by passing the start argument to from_lark . Note that Lark may remove unreachable productions when the grammar is compiled, so you should probably pass the same value for start to both.

Currently from_lark does not support grammars that need custom lexing. Any lexers will be ignored, and any undefined terminals from the use of %declare will result in generation errors. To define strategies for such terminals, pass a dictionary mapping their name to a corresponding strategy as the explicit argument.

The hypothesmith project includes a strategy for Python source, based on a grammar and careful post-processing.

Example grammars, which may provide a useful starting point for your tests, can be found in the Lark repository and in this third-party collection .

hypothesis[pytz] ¶

This module provides pytz timezones.

You can use this strategy to make hypothesis.strategies.datetimes() and hypothesis.strategies.times() produce timezone-aware values.

Any timezone in the Olsen database, as a pytz tzinfo object.

This strategy minimises to UTC, or the smallest possible fixed offset, and is designed for use with hypothesis.strategies.datetimes() .

hypothesis[dateutil] ¶

This module provides dateutil timezones.

You can use this strategy to make datetimes() and times() produce timezone-aware values.

Any timezone from dateutil .

This strategy minimises to UTC, or the timezone with the smallest offset from UTC as of 2000-01-01, and is designed for use with datetimes() .

Note that the timezones generated by the strategy may vary depending on the configuration of your machine. See the dateutil documentation for more information.

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hypothesis/h

Folders and files.

Repository files navigation

h is the web app that serves most of the https://hypothes.is/ website, including the web annotations API at https://hypothes.is/api/ . The Hypothesis client is a browser-based annotator that is a client for h's API.

Development

See the Contributor's guide for instructions on setting up a development environment and contributing to h.

Join us on Slack ( request an invite or log in once you've created an account ).

If you'd like to contribute to the project, you should also subscribe to the development mailing list and read our Contributor's guide . Then consider getting started on one of the issues that are ready for work.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

Hypothesis is released under the 2-Clause BSD License , sometimes referred to as the "Simplified BSD License" or the "FreeBSD License". Some third-party components are included. They are subject to their own licenses. All of the license information can be found in the included LICENSE file.

Code of conduct

Contributors 68.

• Python 86.7%
• JavaScript 7.0%
• TypeScript 0.4%
• Makefile 0.2%

• Knowledge Base
• Hypothesis in the Public Web

Annotation Basics

If you don’t have a free Hypothesis account yet or need to equip your browser with our extension or bookmarklet, visit our Get Started page or find more detailed help in our Quick Start Guide .

Once you’re equipped with Hypothesis, you can explore and interact with public annotations. You’ll need to log in to create annotations and to see private or group annotations.

Viewing annotations

Visit any webpage and activate Hypothesis in Chrome by clicking the Hypothesis extension button in your toolbar.

In other browsers like Internet Explorer, Firefox, or Safari, click the bookmarklet in your toolbar to activate Hypothesis.

If Hypothesis is already activated, the website you are visiting probably has embedded Hypothesis so any visitor can use annotation without needing a browser extension or bookmarklet.

Open the Hypothesis sidebar or click on highlights to view existing public annotations.

Use the Hypothesis sidebar to explore annotations and page notes.

Log in to Hypothesis in the upper right of the sidebar to see your own private annotations and annotations in your private groups.

Interacting with annotations

Every annotation has various components, including a unique link (aka URL) you can use to share it on social media, via email, or by copying the link to paste elsewhere.

Log in to Hypothesis to reply to any annotation or page note, starting an attached, threaded conversation.

Creating annotations

Log in to Hypothesis and use your cursor to select any text. The annotation adder will pop up, enabling you to choose whether to create a highlight (highlights are like private annotations with no related note) or to annotate the selected text.

When creating an annotation, use the toolbar above your note to format text, and add links, pictures, or equations (in LaTeX format) . You can also paste links to YouTube videos to embed them in your note. There’s a help button to learn more about the simple “Markdown” formatting. Use Preview to see how your note will look before you post.

Annotations can be searched by tags, so you can add as many tags as you want to relate it to other annotations with the same tags.

Use the groups menu in the sidebar to choose whether to post your finished note in the public layer or in one of your groups.

In whichever group you choose, you can make your note private by choosing “Only Me”. For more information on how this works, see our help article:  Who can see my annotations?

You can also create public or private page notes to make more general annotations not related to specific highlights on the page.

You can come back at any time to edit or delete your own highlights, annotations, replies, or page notes.

Exploring annotations

If you return to any webpage or document with annotations and activate Hypothesis, you’ll see all your own annotations, along with any annotations shared by other people. But you can also click on your username in the Hypothesis sidebar to visit your profile to find all your annotations collected together.

Your profile is a dashboard where you can find a list of all your annotated documents with the latest at the top, and search them by keywords, tag, group, or URL (ie, the web address of an annotated document ).

Click on any document in the list to see details, including all annotations, highlighted text, tags, annotators, and links to visit the original source and annotations in context, or to share annotations via social media, email, or elsewhere.

The same dashboard in your profile enables you to explore not only your own annotations, but also public and shared annotations by others. Click in the search field to expand beyond your own annotations and search by keywords, user, tag, group, or URL (ie, the web address of an annotated document).

Related Articles

• Installing the Hypothesis Chrome Extension in Microsoft Edge
• How to Use Hypothesis on Mobile Devices
• How Hypothesis Search Works
• Why can’t I find my PDF annotations?
• Moderation for groups
• How to Use Domain-level Search

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