To convert a PDF file of a large size you can use Bitwar PDF converter. It offering a free 3-day trial and supports batch conversion. Refer to the following steps to learn how it works. Step 1 Download Bitwar PDF Converter from the official download center s . Step 2 Install and launch the software. Step 3 On the left part of the interface click on the arrow next to Convert from PDF click on the PDF to Word option below it and drop a PDF file into the right window. Step 4 Set a default path below the center of the right window to save generated files. Step 5 Click on the Convert button and wait for the output.