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[GH-ISSUE #4089] Download as PDF fails due to font not found. #13494

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opened 2026-04-19 20:13:09 -05:00 by GiteaMirror · 0 comments
GiteaMirror commented 2026-04-19 20:13:09 -05:00
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Originally created by @nviraj on GitHub (Jul 24, 2024).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/4089

Bug Report

Description

Bug Summary:
Download as PDF fails due to font not found. Not sure if this error is due to me installing open webui in a conda environment via pip, but if I try to download a thread I get the following error:

File "d:\Apps\PortableApps\open-webui.conda\Lib\site-packages\apps\webui\routers\utils.py", line 70, in download_chat_as_pdf
pdf.add_font("NotoSans", "", f"{FONTS_DIR}/NotoSans-Regular.ttf")
File "d:\Apps\PortableApps\open-webui.conda\Lib\site-packages\fpdf\fpdf.py", line 1859, in add_font
raise FileNotFoundError(f"TTF Font file not found: {fname}")
FileNotFoundError: TTF Font file not found: ./static/fonts/NotoSans-Regular.ttf

The fonts actually exist in the env btw
image

Steps to Reproduce:
Download a chat as PDF

Expected Behavior:
Lets me export a chat as PDF

Actual Behavior:
Fails silently on the UI

Environment

  • Open WebUI Version: 0.3.8

  • Ollama (if applicable): 0.2.8

  • Operating System: Windows 11

  • Browser (if applicable): Firefox 128.0

Reproduction Details

Confirmation:

  • I have read and followed all the instructions provided in the README.md.
  • I am on the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.

Installation Method

Manual install via pip in a conda environment

Originally created by @nviraj on GitHub (Jul 24, 2024). Original GitHub issue: https://github.com/open-webui/open-webui/issues/4089 # Bug Report ## Description **Bug Summary:** Download as PDF fails due to font not found. Not sure if this error is due to me installing open webui in a conda environment via pip, but if I try to download a thread I get the following error: > File "d:\Apps\PortableApps\open-webui\.conda\Lib\site-packages\apps\webui\routers\utils.py", line 70, in download_chat_as_pdf > pdf.add_font("NotoSans", "", f"{FONTS_DIR}/NotoSans-Regular.ttf") > File "d:\Apps\PortableApps\open-webui\.conda\Lib\site-packages\fpdf\fpdf.py", line 1859, in add_font > raise FileNotFoundError(f"TTF Font file not found: {fname}") > FileNotFoundError: TTF Font file not found: ./static/fonts/NotoSans-Regular.ttf The fonts actually exist in the env btw ![image](https://github.com/user-attachments/assets/46365ffd-1095-45ed-9538-1945a73f1ddd) **Steps to Reproduce:** Download a chat as PDF **Expected Behavior:** Lets me export a chat as PDF **Actual Behavior:** Fails silently on the UI ## Environment - **Open WebUI Version:** 0.3.8 - **Ollama (if applicable):** 0.2.8 - **Operating System:** Windows 11 - **Browser (if applicable):** Firefox 128.0 ## Reproduction Details **Confirmation:** - [ ] I have read and followed all the instructions provided in the README.md. - [ ] I am on the latest version of both Open WebUI and Ollama. - [ ] I have included the browser console logs. - [ ] I have included the Docker container logs. ## Installation Method Manual install via pip in a conda environment
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Reference: github-starred/open-webui#13494
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