sahal/00_redact_and_rasterize.md

## 00_redact_and_rasterize.md

      
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              00_redact_and_rasterize.md
            
          
    Okular


Multi-platform, fast and packed with features, Okular allows you to
read PDF documents, comics and EPub books, browse images, visualize
Markdown documents, and much more.

Okular
Redact

Use Okular (or similar) to add annotations that cover up the parts of
the PDF that you want to redact (i.e. passwords, socials, etc)
Rasterize

Use Okular (or similar) to print as PDF, making sure to select "Force
rasterization" (or similar) before exporting as PDF.
This will produce a PDF without vector images -- instead all form
fields/text will be "rasterized" or turned into an image.

  
## 01_split_pdf.md

      
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              01_split_pdf.md
            
          
    pdfimages


Pdfimages saves images from a Portable Document Format (PDF) file as
Portable Pixmap (PPM), Portable Graymap (PGM), Portable Bitmap (PBM),
or JPEG files.

pdfimages
extract images from rasterized pdf

$ mkdir images
$ pdfimages -tiff file.pdf images/


## 02_edit_images.md

      
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              02_edit_images.md
            
          
    Edit Images

Do some more redaction, remove information, etc using your favorite
image editor.  I used GIMP

  
## 03_imagemagick_commands.md

      
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              03_imagemagick_commands.md
            
          
    Imagemagick


ImageMagick® is a free, open-source software suite, used for editing
and manipulating digital images. It can be used to create, edit, compose,
or convert bitmap images, and supports a wide range of file formats,
including JPEG, PNG, GIF, TIFF, and PDF.

ImageMagick
Resize images

$ convert input.tif -intensity Rec709luminance -colorspace gray
-resize 50% -quality 80 output.jpg

Combine jpgs into a single pdf

$ convert $(find . -type f -name "*.jpg"|sort) output.pdf


## 04_use_pdfchain_add_additional_pages.md

      
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              04_use_pdfchain_add_additional_pages.md
            
          
    pdfchain


PDF Chain is a graphical user interface for the PDF Toolkit
(PDFtk). The GUI supports all common features of the command line tool
in a comfortable way.

PDF Chain
Alternatively, for people that don't use Linux, use
pdfsam
Burst

Use this tab to split the pdf into multiple pdfs (one per page)
Catenate

Use this tab to concatonate (combine) multiple pdfs into a single pdf.
This is great to include pages with titles to your rasterized PDF.