User:Pedro Sá Couto/TW/REPUBLISHING FLOW

STEPS

Republishing is separated into 6 steps:

1. Moving the book from the webserver to a work place

1.1 Replacing all spaces with underscores

2. Creating the watermark from the gathered form in Tactical Watermarks

2.1 Create the watermark in pdf with reportlab

2.2 Convert to a png

3. Append the watermark to the pdf

3.1 Burst the pdf into pages

3.2 Rotate the watermark with PIL

3.3 Overlay the watermark with PIL

3.4 Merge all images into a PDF

4. OCR the pdf if not OCRed already
5. Save the file in a directory open to Library Genesis Staff
6. Delete all the unwanted traces

FLOW

RUN.SH

To activate the stream I use ./run.sh

sudo chmod 777 *
./movebookfolder.sh
./watermarkformtxt.sh
./appendwatermarktopdf.sh
./republish.sh
./deletetraces.sh

RESULTS IN EACH STEP

0. Starting with a Paper from JSTOR
File:42938075.pdf

1. Bursting the PDF into PNGs

PDF is seperated into pages

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2. Overlaying the cover

The cover is overlayed and dewatermarked

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3. Overlaying the pages

The pages are overlayed and dewatermarked

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4. OCR again

You have a De-watermarked, searchable PDF

File:42938075 dewater.pdf