Revert "degrade wkhtmltopdf-binary to even lower 0.9.9"

This reverts commit e57fd5f5fd2243f926bbca6c3214cc34ebfc6d6d.
Revert "degrade wkhtmltopdf-binary to 0.9.9.2 because 0.9.9.3 is corrupted in server"

This reverts commit 0d31c1a0f5903c83217f776f19bc2ff8f0a50011.
Revert "added pdfkit. Not working on local will hang."

This reverts commit c806afe645685630e89ddb526df1d1d2ed7cb569.