PDF Cosine Similarity Scores Calculation

I need a skilled professional to compute cosine similarity scores between a master document and 485 comparison documents. IMPORTANT: Please, ensure that your computations are based on sequences of eight words.

All files are in PDF format and only consist of English text without any special characters or symbols. Here are the specifics:

- Files: One master document and 485 comparison documents in PDF format
- Language: English only
- Special Considerations: No special characters or symbols involved

Experience with text processing and similarity measures, especially cosine similarity, is crucial for this project. Proficiency in programming languages that can handle this task, such as Python or Java, is also required. Your expertise in dealing with PDF files will be a definite advantage.