Hello,
Thank you for your inquiry.
I simulated a 75KB Word document and tested our latest
Spire.Doc Pack(Hot Fix) Version:9.4.12. The PDF conversion costs about 7s. If you were using an old version, I suggest that you try again with the latest version. If your issue still exists after testing, to help further investigate it, please share us with your Word file as well as your testing environment, such as (E.g. Windows7, 64bit) and region setting (E.g. China, Chinese). You could attach your file here or send it to our email (
support@e-iceblue.com).
Sincerely,
Annika
E-iceblue support team