--- title: Sources description: Give Jellypod reference material to work from. --- Sources are files, links and text you give Jellypod as reference material, such as an article, a company overview, a YouTube interview or a PDF report. Jellypod extracts the content, and the Podcast Agent uses it to stay accurate and on topic. Sources are optional. Without them, the agent researches the topic itself with [web research](/podcast-agent/how-the-podcast-agent-works#web-research). Two or three focused sources work better than ten vague ones. Each source you add is saved in your [Asset Library](/sources/source-library), where you can browse, download, reuse and delete saved sources and visuals. ## Source levels | Level | Where it applies | Best for | Limit | | --- | --- | --- | --- | | Podcast | Every episode in the series | Evergreen material like brand guidelines, company overviews or host bios | 3 per podcast | | Episode | One episode, added in the chat | This week's article or a guest interview | No fixed limit | Manage podcast sources from Podcast Sources in an existing podcast's actions menu. In the Podcast Agent chat, they carry a Podcast Source label. ## Which Products use sources - Podcasts: the Podcast Agent reads podcast and episode sources when it writes the script. - Videos and Shorts: sources are research for the script. - Voiceovers: the files you upload are the visuals, not research. If a source you attach in the composer already reads like a finished script, Jellypod asks when you send whether to use its exact words or treat it as research. Automations and the API treat every source as research. See [attach a script as a source](/podcasts-and-episodes/use-your-own-script#attach-a-script-as-a-source). ## Add a source 1. Click + next to the chat input to open Add Sources. 2. Pick an option: - Search your Asset Library to reuse an existing source. - Click Upload files, or drop files anywhere in the dialog. - Click Link, paste a public website or YouTube URL, then click Add link. - Click Paste text, enter your content, then click Add text. On the start screen for new content, pasting 2,000 or more characters into the chat input turns the text into a source. ## File types Every supported file can be up to 100 MB. For other formats, export to a supported one first. | Category | Formats | | --- | --- | | Documents | PDF, Word (.doc, .docx, .docm), RTF, EPUB, OpenDocument Text (.odt) | | Presentations | PowerPoint (.ppt, .pptx, .pptm), OpenDocument Presentation (.odp) | | Spreadsheets | Excel (.xls, .xlsx, .xlsm, .xlsb), OpenDocument Spreadsheet (.ods), CSV | | Audio | MP3, WAV, M4A, MPEG, AAC, OGG (transcribed) | | Video | MP4, MOV, WebM, AVI (transcribed) | | Images | JPG, PNG, BMP, WebP | | Text | TXT, Markdown (.md, .markdown), HTML, XML, TSV | [Voiceover uploads](/voiceovers) have their own file rules, and NotebookLM audio is [imported, not added as a source](/podcasts-and-episodes/importing-notebooklm-audio). A PDF source can have up to 250 pages. - Uploaded in the Studio: a longer PDF is trimmed to its first 250 pages and added as one source with a `_split` suffix. A warning says how many pages were kept. Upload the rest as a separate file. - Added any other way: a PDF over the limit fails with an error showing its page count. Split it into smaller files. - Blank or corrupted PDFs are rejected. Re-export the file from the original. ## Websites and YouTube Jellypod reads any public page. Pages behind a paywall or login may fail, so paste their text instead. A link to a PDF reads only its first 30 pages; to use more, download the PDF and upload the file. For a public YouTube URL, Google Gemini analyzes the video and Jellypod saves AI-generated reference notes. The notes aren't a verbatim transcript and may omit or misread details, so check them against the video. Private and unlisted videos, channels and playlists aren't supported. If Google can't analyze a video, upload reference material you have permission to use, or paste your own notes. ## Cover a long document An episode condenses its sources to fit its duration, so a PDF under 250 pages can still hold more than one episode covers. A longer duration, within your [plan's episode length limit](/account-and-billing/plans-and-pricing#plan-limits), gives the script more room but doesn't guarantee every detail. To work through a long document in parts: 1. Split it at chapter or topic boundaries. Export each part as its own PDF, or paste the section as a text source. 2. Create one episode per part, attaching only that part as an episode source. Don't also attach the full document as a podcast source. 3. In the prompt, name the section and the topics to cover, and choose a duration that leaves room for them. 4. If the script still skips material, use a smaller section or a longer episode. Each episode uses its own [credits](/getting-started/understanding-credits). ## Fix a source Jellypod extracts a source's content before the AI can use it. Each source shows its state in the chat. | State | What you see | | --- | --- | | Uploading | The file is still being sent. | | Processing | A spinner while content is extracted. | | Ready | No indicator. Extraction finished. | | Error | A warning icon on the thumbnail and the reason under the source name. Hover the source to read a cut-off message. | Episodes, videos and Voiceovers can start generating before Processing finishes and wait for extraction. An episode shows "Waiting for your sources to finish processing." meanwhile. If a source fails or gets stuck, match the reason under the source name: | Reason | Fix | | --- | --- | | Paywalled or login-only page | Paste the article text as a source. | | "File type not supported" | Upload a [supported format](#file-types). | | PDF with no readable pages | Re-export it from the original document. | | Private or unavailable YouTube video | Use a public link, or paste the transcript as text. | | "This source took longer than 12 minutes to read. Remove it and add a smaller file." | Split the file into smaller parts and add those. | | "This link took longer than 12 minutes to read. Remove it and try another link." | Use a different link. | | "Processing timed out. Remove this source and upload it again." | The source stalled for more than 15 minutes. Remove it and add it again. | If generation stopped because a source failed, fix or remove the source, then retry. See [if episode generation fails](/podcasts-and-episodes/episode-generation-failed), or [video generation failures](/video-generation-failures) for videos, Shorts and Voiceovers (the Review sources button). ## Remove a source Click the `x` on the source in the chat to remove it from that content. While a source is uploading or processing, hover its spinner to reveal the `x`. - A failed source is deleted when you remove it, because failed sources aren't kept in your Asset Library. - Podcast sources can't be removed from the chat. Choose Podcast Sources from the podcast's actions menu. - To delete a source everywhere, see [delete a source](/sources/source-library#delete-a-source). Sources don't refresh in place. To use changed content, remove the source and add the URL or file again.