Among file conversions that are not instant and may take some time to complete, currently, only audio and video conversions reports its progress in percentages, so you can track it goes from 0 to 100% and roughly calculate an ETA for this file conversions. All other non-instant file conversions don't display conversion progress and it make looks like file conversion stuck on Converting stage. Please, be sure, to read articles about how fast is our file converter and how fast is our OCR tool.
Despite all the above, occasionally you may experience an issue when you see file in 'Converting' stage and it seems like it stuck and never completed.
Some web browsers may report us that file has been uploaded completely and we can switch to Converting stage when it doesn't. So Converting stage is misleading in this situation.
First of all read file uploading stuck article and make sure to perform all the recommendations from this article. Microsoft Edge browser is knowing to produce this issue most often.
After that, you may stop the stuck file conversion and restart your file conversion from the very beginning, following this tutorial.