merge files to pdf - with PDFzorro Chrome 插件, crx 扩展下载

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merge files online to one pdf, direct from GoogleDriveApp for Google Drive to merge different files to one single PDF-document. 
This app integrates into the Google Drive´s context menu. It is easy and fast to handle.

Simple mark the files you want to merge, right click and select "merge files to pdf - with PDFzorro"

For example:

[mark files online in your Google Drive]
News.pdf
Letter.docx
Timetable.xls
Lunch.gdoc

[rightclick and merge to new file]
merge_file.pdf