If the conversion fails to complete, please try to restart the conversion progress. If this does not work, you are left with the option of re-uploading your file and converting it again. PDFBear ask that you to be patient and wait for the conversion to complete if your file size is big. If it is still unable to complete, please try using another browser and make sure no extensions are being used while opening the website. If the above methods cannot solve the problem, please do not hesitate to contact them and write them a report for it, they will try their best to assist you.