HTML book content creator started

Detecting book name: iot-reloaded

Loading ToC from en/iot-reloaded/toc

Generating HTML source to: iot-reloaded

Converting main content to PDF with stylesheet

Removing add page

Merge failed! Check exec string pdftk /data/book/src/iot-reloaded-cover.pdf /data/book/pdf/temp.pdf /data/book/src/iot-reloaded-back.pdf cat output /data/book/pdf/iot-reloaded.pdf