# Uploading Sources to Memo

A practical guide for adding PDFs, images, YouTube, websites, and text to Memo.

URL: https://www.memo.cards/help/sources/uploading-sources-to-memo
Updated: 2026-09-21T00:00:00+08:00

Memo lets you attach source material to any notebook so Studio and Memo Agent can work from your own content. You can mix multiple source types in the same notebook.

## Supported source types

- PDF files

- Images such as PNG, JPG, JPEG, and WebP

- YouTube videos with usable transcripts or captions

- Website URLs

- Pasted text

## Before you start

1.  Open your notebook.

2.  Go to the **Sources** panel.

3.  Click **Add source**.

4.  Add one or more sources.

5.  Wait until each source shows **Ready**.

## Adding each source type

### PDF

1.  Open **Add source**.

2.  Drag in a PDF or choose one from your device.

3.  If needed, click **Split pages** to keep only specific pages.

4.  Confirm the upload.

### Image

1.  Open **Add source**.

2.  Upload a supported image file.

3.  Wait for Memo to process the image content.

Images are useful for scanned notes, diagrams, screenshots, or single-page handouts.

### YouTube

1.  Open **Add source**.

2.  Choose the YouTube option.

3.  Paste a valid YouTube link.

4.  Confirm the source.

Videos with captions or usable transcripts usually produce better results.

### Website

1.  Open **Add source**.

2.  Choose the website option.

3.  Paste the full URL, including `http://` or `https://`.

4.  Confirm the source.

### Pasted text

1.  Open **Add source**.

2.  Choose the text option.

3.  Optional: enter a source name.

4.  Paste your text.

5.  Confirm the source.

## Managing source selection

Memo does not force you to use every source in a notebook for every run. Before generating flashcards, notes, tests, podcasts, or other Studio outputs, select the ready sources you want to include. The same selection also affects Memo Agent retrieval.

This is useful when you want to generate from one lecture, compare a few readings, or exclude unfinished material.

## Source statuses

- **Uploading**: the source is still being sent to Memo.

- **Queued**: the job is waiting to start.

- **Processing**: Memo is extracting and preparing the content.

- **Ready**: the source can be used in Studio and Memo Agent.

- **Error**: the source did not finish processing successfully.

## Important notes

- Only **Ready** sources should be used for generation and Memo Agent.

- File-size limits depend on your current plan. Check the upload dialog or subscription page for live limits.

- Text sources have a character limit shown in the product.

- Some older legacy notebooks may still show primary-source items with slightly different behavior.