Now,the software VeryDOC PowerPoint Converter v3.0 will tell you how to convert PPTX to PNG format.But someone may raise a question"What is PPTX?I have only heard about PPT but not PPTX."PPTX is the file extension used for Microsoft PowerPoint 2007 and Microsoft PowerPoint 2010 files,it’s just like PPT.
Step1.You should download the software VeryDOC PowerPoint Converter v3.0 on this website https://www.verydoc.com/powerpoint-converter.html or https://www.verydoc.com/verydoc_pptconverter.exe. Then run it.
Step2.Add the PPTX file(s) into VeryDOC PowerPoint Converter v3.0.
Step3.Select “PNG”format in the output format frame in the top right corner.
Step4.Start to convert.Before converting, you should save the file(s) to be converted to PNG format in a right path and click “save” option.
Step5.In a popping window after converting,you will see all the PPTX file(s) have been converted to PNG format.
Of course , it also can convert PPTX to other formats if you like.