problem description:

I want to use the "export function" of impression notes to export to disk. Because of the large number of notes, I will export a large number of small files in the format of .jpg .gif .pdf. In order to reduce disk loss and improve the efficiency of later deletion, is there a way to Filter other types of files, not to write these files to disk, but only .html to disk.

my idea:
whether the 1.windows system provides the function of "only allow * .html, but other types of files do not have the right to write", I can. (PS: with just a few mouse clicks. I use windows 8, but I find that it does not seem to provide this granularity of control. )

2. Because the write disk side is a black box for me, I can"t modify it. Is there any third-party software that can monitor the write stream of impression notes and lose other types of files by Filter? (PS: this involves parsing the write stream format, which is probably difficult.)

3. I can"t think of another plan. Ask for advice.