title	emoji	colorFrom	colorTo	sdk	sdk_version	app_file	pinned	license	short_description
Pdf Translator For Human	🦀	indigo	green	streamlit	1.42.0	app.py	false	apache-2.0	PDF Translator powered by local llm, side by side reading

PDF Translator for Human: A PDF Reader/Translator with Local LLM/ChatGPT or Google

Use Case

There is tons of PDF reader/translator with AI supported. However none of them meets my need. I hope it could run totally on local with local LLMs.

I hope to read both the original PDF and the translated pages side by side. Also I don't like to translate a 1000 pages long PDF file all at once, it costs lots of time and tokens. And most of the time, I never complete reading through all contents of a long paper.

Features in PDF Translator for Human

You can read both the original PDF file and the translated content side by side.

The local/remote translation API is invoked on a per-page basis as needed, triggered by page turns during reading.

Snapshot

Huggingface Space

https://huggingface.co/spaces/davideuler/pdf-translator-for-human

Supported translators and LLMs:

• Google Translator (NO need api-key, it it totally free)

• Local deployed LLMs (ollama, llama.cpp, mlx_lm ... etc.)

• ChatGPT

• DeepSeek (Use the OpenAI Compatible endpoint at https://api.deepseek.com/v1)

• Qwen (Use the OpenAI Compatible endpoint)

• Other OpenAI Compatible LLMs like GLM/Moonshot etc.

Start the Web Application for PDF Translator for Human

./run_translator_web.sh

# or just start the streamlit application if you have run the previous script:
streamlit run app.py

Notes on deployment and starting a local llm inference service

Option 1.Start local llm By mlx_lm (works on Mac Sillicon.)

Here I download aya-expanse-8b 4bit as an example.

# download mlx models from huggingface to local folder
git clone https://huggingface.co/mlx-community/aya-expanse-8b-4bit

# install mlx_lm
pip install mlx_lm

# start the server
mlx_lm.server --model ./aya-expanse-8b-4bit --port 8080

Option 2. By llama.cpp (Works on CPU/GPU/Mac Machines)

Llama.cpp works on CPU machines and Mac Intel/Sillicon machines, you need 48GB memories for aya-expanse-32b-q4_k_m.gguf.

# download gguf models from huggingface to local folder
wget https://hf-mirror.co/bartowski/aya-expanse-32b-GGUF/resolve/main/aya-expanse-32b-Q4_K_M.gguf -O aya-expanse-32b-Q4_K_M.gguf

# download llama.cpp and install llama.cpp
git clone https://github.com/ggerganov/llama.cpp
cd llama.cpp
mkdir -p build && cmake -B build
cmake --build build --config Release -j 12

# start llama.cpp server
./llama-server -m ~/models/aya-expanse-32b-Q4_K_M.gguf --port 8080

Options 3. Local inference service by ollama/vLLM and other application such as LMStudio

Please read the official guide for you LLM inferencing tool.

Option 4. Note on using OpenAI Compatible LLM service provider

For example, run the following command before start the streamlit application to enable translation by deepseek :

export OPENAI_MODEL=deepseek-chat
export OPENAI_API_BASE=https://api.deepseek.com/v1
export OPENAI_API_KEY=sk-xxxx

Run the following command before start the streamlit application to enable translation by moonshot :

export OPENAI_MODEL=moonshot-v1-8k
export OPENAI_API_BASE=https://api.moonshot.cn/v1
export OPENAI_API_KEY=sk-xxxx

Acknowlegement

https://github.com/nidhaloff/deep-translator

The project is based on the awesome deep-translator. Thanks to the excellent work in the original project, I can integrate it to the pdf translator tool.

Pull Requests are welcome.