# Documents and links

> Notes, worksheets and further reading.

Source: https://paatya.net/docs/courses/documents-and-links

Give students notes, worksheets and slides to go with a lesson, and point them to useful pages elsewhere on the web. This page shows you how to add documents and links to a topic.

## Before you start

- Open the topic's editor. See [Build the curriculum](https://paatya.net/docs/courses/curriculum).
- Documents can be **PDF, DOCX, PPTX, XLSX or ZIP** files, **up to 50 MB each**.

## Add documents

1. In the topic's editor, click the **Documents** tab.
2. Drag your files onto the box that says **Drag and drop files here**, or click **Browse files**. You can add several at once.
3. Wait for each upload to finish. The files appear under **Attached documents**.

![The Documents tab with attached documents and external links](https://paatya.net/docs/img/courses-documents-and-links-1.png)

## Let students download a file, or only read it

Each document has a **Downloadable** switch. It's on for every new file.

- **On:** students can save the file to their device.
- **Off:** students can only read the file in their browser. This works for **PDFs** only, so a Word, PowerPoint, Excel or ZIP file with this switch off can't be opened at all. Paatya warns you under the file name when this happens.

> **Tip:** To let students read your notes without keeping a copy, upload them as a PDF and turn **Downloadable** off.

## Rename, reorder or remove a document

- **Rename:** click the pencil icon next to the document. The new name is what students see.
- **Reorder:** drag the document by its grip on the left.
- **Remove:** click the bin icon.

## Add links

Links send students to pages you don't host yourself, such as an article or a practice tool. They open in a new tab.

1. On the same **Documents** tab, scroll to **External links**.
2. Click **Add link**.
3. Type a **Title**, such as "Pronunciation practice".
4. Type the **Address**, such as `https://example.com/guide`.
5. Click **Add link** to save it.

To change a link, click its pencil icon, make your change, and click **Save link**. To remove it, click its bin icon. Drag links by their grip to reorder them.

## What you'll see

- On the Curriculum page, the topic shows how many documents it has, such as **2 documents**.
- Students find the files and links on the **Documents** tab of the lesson. Their downloadable files are also listed under **Course resources** on the course's overview.

## If something goes wrong

- **"… is not a PDF, DOCX, PPTX, XLSX or ZIP".** Save the file in one of those formats. For example, save a Word document as DOCX or PDF.
- **"… the limit is 50 MB per file".** Make the file smaller, or split it into two files.
- **"A link has to start with http:// or https://".** Copy the full address from your browser's address bar.
- **A student can't open a file.** If **Downloadable** is off and the file isn't a PDF, students can't open it. Turn **Downloadable** on, or upload it as a PDF.

## Next step

[Publish, clone, archive or delete](https://paatya.net/docs/courses/publish-archive-delete): make your course live.