[GH-ISSUE #14821] issue: Failed to upload PDF file when using Docling #71979

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opened 2026-05-13 03:57:35 -05:00 by GiteaMirror · 4 comments
Owner

Originally created by @xiajianlin on GitHub (Jun 10, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/14821

Check Existing Issues

  • I have searched the existing issues and discussions.
  • I am using the latest version of Open WebUI.

Installation Method

Git Clone

Open WebUI Version

v0.6.13

Ollama Version (if applicable)

No response

Operating System

Windows 10

Browser (if applicable)

No response

Confirmation

  • I have read and followed all instructions in README.md.
  • I am using the latest version of both Open WebUI and Ollama.
  • I have included the browser console logs.
  • I have included the Docker container logs.
  • I have provided every relevant configuration, setting, and environment variable used in my setup.
  • I have clearly listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc).
  • I have documented step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation. My steps:
  • Start with the initial platform/version/OS and dependencies used,
  • Specify exact install/launch/configure commands,
  • List URLs visited, user input (incl. example values/emails/passwords if needed),
  • Describe all options and toggles enabled or changed,
  • Include any files or environmental changes,
  • Identify the expected and actual result at each stage,
  • Ensure any reasonably skilled user can follow and hit the same issue.

Expected Behavior

Can upload PDF files containing images normally when using docling

Actual Behavior

Image

Image

upload PDF files containing images failed.

Steps to Reproduce

  1. Set the value of Content Extraction Engine to "docling" , "tesseract", "eng"
  2. Go to chat page and upload a PDF file containing images, then failed.

Logs & Screenshots

Image

Additional Information

No response

Originally created by @xiajianlin on GitHub (Jun 10, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/14821 ### Check Existing Issues - [x] I have searched the existing issues and discussions. - [x] I am using the latest version of Open WebUI. ### Installation Method Git Clone ### Open WebUI Version v0.6.13 ### Ollama Version (if applicable) _No response_ ### Operating System Windows 10 ### Browser (if applicable) _No response_ ### Confirmation - [x] I have read and followed all instructions in `README.md`. - [x] I am using the latest version of **both** Open WebUI and Ollama. - [x] I have included the browser console logs. - [x] I have included the Docker container logs. - [x] I have **provided every relevant configuration, setting, and environment variable used in my setup.** - [x] I have clearly **listed every relevant configuration, custom setting, environment variable, and command-line option that influences my setup** (such as Docker Compose overrides, .env values, browser settings, authentication configurations, etc). - [x] I have documented **step-by-step reproduction instructions that are precise, sequential, and leave nothing to interpretation**. My steps: - Start with the initial platform/version/OS and dependencies used, - Specify exact install/launch/configure commands, - List URLs visited, user input (incl. example values/emails/passwords if needed), - Describe all options and toggles enabled or changed, - Include any files or environmental changes, - Identify the expected and actual result at each stage, - Ensure any reasonably skilled user can follow and hit the same issue. ### Expected Behavior Can upload PDF files containing images normally when using docling ### Actual Behavior ![Image](https://github.com/user-attachments/assets/48c027f0-e2c1-466a-8115-517ac19a9e38) ![Image](https://github.com/user-attachments/assets/75af9e94-66e1-4d66-8ee3-4fe32145c931) upload PDF files containing images failed. ### Steps to Reproduce 1. Set the value of Content Extraction Engine to "docling" , "tesseract", "eng" 2. Go to chat page and upload a PDF file containing images, then failed. ### Logs & Screenshots ![Image](https://github.com/user-attachments/assets/48c027f0-e2c1-466a-8115-517ac19a9e38) ### Additional Information _No response_
GiteaMirror added the bug label 2026-05-13 03:57:35 -05:00
Author
Owner

@Expro commented on GitHub (Jun 10, 2025):

Seems like open-webui is incompatible with docling-serve v12 and v13. Last working version is v11.

<!-- gh-comment-id:2959054911 --> @Expro commented on GitHub (Jun 10, 2025): Seems like open-webui is incompatible with docling-serve v12 and v13. Last working version is v11.
Author
Owner

@silentoplayz commented on GitHub (Jun 10, 2025):

Related - https://github.com/open-webui/open-webui/issues/14807

<!-- gh-comment-id:2959350632 --> @silentoplayz commented on GitHub (Jun 10, 2025): Related - https://github.com/open-webui/open-webui/issues/14807
Author
Owner

@geiseri commented on GitHub (Jun 11, 2025):

I have the same issue. I did notice this error with ALL versions of docling though

ERROR:docling_serve.engines.async_local.worker:Worker 0 failed to process job 0b523f78-3735-4132-a971-36df5de69f62: 500: ({'eng'}, 'is not supported')

That is my setting for the OCR language. If i remove it then things start to work again. So it must be the API changed.

<!-- gh-comment-id:2963770570 --> @geiseri commented on GitHub (Jun 11, 2025): I have the same issue. I did notice this error with ALL versions of docling though ``` ERROR:docling_serve.engines.async_local.worker:Worker 0 failed to process job 0b523f78-3735-4132-a971-36df5de69f62: 500: ({'eng'}, 'is not supported') ``` That is my setting for the OCR language. If i remove it then things start to work again. So it must be the API changed.
Author
Owner

@frenzybiscuit commented on GitHub (Jun 12, 2025):

Seems like open-webui is incompatible with docling-serve v12 and v13. Last working version is v11.

BINGO! This is correct.

In your docker compose file, set the image to: quay.io/docling-project/docling-serve:v0.11.0

<!-- gh-comment-id:2967874701 --> @frenzybiscuit commented on GitHub (Jun 12, 2025): > Seems like open-webui is incompatible with docling-serve v12 and v13. Last working version is v11. BINGO! This is correct. In your docker compose file, set the image to: quay.io/docling-project/docling-serve:v0.11.0
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Reference: github-starred/open-webui#71979