If your document is only slightly larger than the 50mb that Turnitin allows, try saving it as a PDF, as this will automatically reduce the file size.
If your document is not uploading into Blackboard Assignment there is a 500mb limit, this can occur if using audio and images, try compressing your images.
Compressing Images
The example below shows how to compress your images in a Word document but this is the same for PowerPoint too.
Any Microsoft file containing a number of large images compress them to avoid assignment upload issues.
- We recommend that you create a copy of your original file before compressing, and always check the quality of images after you have reduced the file size.
- Try compressing images at the point of pasting into your document or this can be actioned after as needed:

- Select an image - there will be a box around it and the ribbon across the top will change into Picture Format mode.
- Click the option 'Compress Pictures' (Ribbon - Adjust section)
- In the Compress Pictures pop-up window... You can then choose an output size. If your original document is very large you might need to check the E-mail option to significantly reduce your file size.

Check the quality of your pictures, ensuring all content is still accessible in the compressed document and save again.