PDFTK est un Tool Kit pour pdf, il n'est pas installé par défaut:

root@supremae:~# apt install pdftk

couper les pages d'un PDF en autant de PDF

frater@supremae:$ pdftk fichier_sources.pdf burst output ICT-%02d.pdf

cette commande va créer autant de PDF qu'il existe de page dans fichier_sources.pdf.

pour encrypter tout les PDFs d'un folder avec le même mot de passe RandomPassW0rd_0wner on précise également un “owner” ProjectPorto2017

#!/bin/bash
 
IFS=$'\n';
TARGET="/home/frater/pdfs/encrypted";
 
# shopt -s nullglob
for f in $(find -name '*.pdf' -type f)
do
  DIR=$(dirname "$f");
  DIR=${DIR:2};
  FNAME=$(basename "$f");
  echo "Processing [$FNAME] file...";
  mkdir -p "$TARGET/$DIR" 
  pdftk $f output ../encrypted/$DIR/$FNAME owner_pw RandomPassW0rd_0wner user_pw ProjectPorto2017
done

pdftk port to java 3.3.2 a Handy Tool for Manipulating PDF Documents

Copyright © 2017-2018 Marc Vinyals - https://gitlab.com/pdftk-java/pdftk

Copyright © 2003-2013 Steward and Lee, LLC.

pdftk includes a modified version of the iText library.

Copyright © 1999-2009 Bruno Lowagie, Paulo Soares, et al.

This is free software; see the source code for copying conditions. There is NO warranty, not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

pdftk <input PDF files | - | PROMPT>
            [ input_pw <input PDF owner passwords | PROMPT> ]
            [ <operation> <operation arguments> ]
            [ output <output filename | - | PROMPT> ]
            [ encrypt_40bit | encrypt_128bit | encrypt_aes128 ]
            [ allow <permissions> ]
            [ owner_pw <owner password | PROMPT> ]
            [ user_pw <user password | PROMPT> ]
            [ flatten ] [ need_appearances ]
            [ compress | uncompress ]
            [ keep_first_id | keep_final_id ] [ drop_xfa ] [ drop_xmp ]
            [ replacement_font <font name> ]
            [ verbose ] [ dont_ask | do_ask ]

<operation> may be empty, or:

cat 
shuffle 
burst 
rotate 
generate_fdf 
fill_form 
background 
multibackground 
stamp 
multistamp 
dump_data 
dump_data_utf8 
dump_data_fields 
dump_data_fields_utf8
dump_data_annots 
update_info 
update_info_utf8 
attach_files 
unpack_files

For Complete Help: pdftk –help

If PDF is electronic paper, then pdftk is an electronic staple-remover, hole-punch, binder, secret-decoder-ring, and X-Ray-glasses. Pdftk is a simple tool for doing everyday things with PDF documents. Use it to:

• Merge PDF Documents or Collate PDF Page Scans
• Split PDF Pages into a New Document
• Rotate PDF Documents or Pages
• Decrypt Input as Necessary (Password Required)
• Encrypt Output as Desired
• Fill PDF Forms with X/FDF Data and/or Flatten Forms
• Generate FDF Data Stencils from PDF Forms
• Apply a Background Watermark or a Foreground Stamp
• Report PDF Metrics, Bookmarks and Metadata
• Add/Update PDF Metrics, Bookmarks or Metadata
• Attach Files to PDF Pages or the PDF Document
• Unpack PDF Attachments
• Burst a PDF Document into Single Pages
• Uncompress and Re-Compress Page Streams
• Repair Corrupted PDF (Where Possible)

A summary of options is included below.

Show this summary of options.

A list of the input PDF files. If you plan to combine these PDFs (without using handles) then list files in the order you want them combined. Use - to pass a single PDF into pdftk via stdin.

Input files can be associated with handles, where a handle is one or more upper-case letters:

<input PDF handle>=<input PDF filename> Handles are often omitted. They are useful when specifying PDF passwords or page ranges, later.

For example:

A=input1.pdf QT=input2.pdf M=input3.pdf

Input PDF owner passwords, if necessary, are associated with files by using their handles:

<input PDF handle>=<input PDF file owner password>

If handles are not given, then passwords are associated with input files by order.

Most pdftk features require that encrypted input PDF are accompanied by the ~owner~ password. If the input PDF has no owner password, then the user password must be given, instead. If the input PDF has no passwords, then no password should be given.

When running in do_ask mode, pdftk will prompt you for a password if the supplied password is incorrect or none was given.

Available operations are: cat, shuffle, burst, rotate, generate_fdf, fill_form, background, multibackground, stamp, multistamp, dump_data, dump_data_utf8, dump_data_fields, dump_data_fields_utf8, dump_data_annots, update_info, update_info_utf8, attach_files, unpack_files.

Some operations takes additional arguments, described below.

If this optional argument is omitted, then pdftk runs in 'filter' mode. Filter mode takes only one PDF input and creates new PDF after applying all of the output options, like encryption and compression.

Assembles (catenates) pages from input PDFs to create a new PDF. Use cat to merge PDF pages or to split PDF pages from documents. You can also use it to rotate PDF pages. Page order in the new PDF is specified by the order of the given page ranges. Page ranges are described like this:

<input PDF handle>[<begin page number>[-<end page number>[<qualifier>]]][<page rotation>]

Where the handle identifies one of the input PDF files, and the beginning and ending page numbers are one-based references to pages in the PDF file. The qualifier can be even, odd, or ~, and the page rotation can be north, south, east, west, left, right, or down.

If a PDF handle is given but no pages are specified, then the entire PDF is used. If no pages are specified for any of the input PDFs, then the input PDFs' bookmarks are also merged and included in the output.

If the handle is omitted from the page range, then the pages are taken from the first input PDF.

The even qualifier causes pdftk to use only the even-numbered PDF pages, so 1-6even yields pages 2, 4 and 6 in that order. 6-1even yields pages 6, 4 and 2 in that order.

The odd qualifier works similarly to the even.

Pages can be subtracted from a page range using the ~ qualifier followed by a page range. For instance, 1-20~5-6 and 1-20~5~6 are equivalent to 1-4 7-20, and ~5 yields all pages except page 5. Depending on your shell, you may need to quote this argument because of the ~ at the beginning.

The page rotation setting can cause pdftk to rotate pages and documents. Each option sets the page rotation as follows (in degrees): north: 0, east: 90, south: 180, west: 270, left: -90, right: +90, down: +180. left, right, and down make relative adjustments to a page's rotation.

If no arguments are passed to cat, then pdftk combines all input PDFs in the order they were given to create the output.

Page Range Examples without Handles:

• 1\-endeast - rotate entire document 90 degrees
• 5 11 20 - take single pages from input PDF
• 5-25oddwest - take odd pages in range, rotate 90 degrees
• 6-1 - reverse pages in range from input PDF

Page Range Examples Using Handles: (Say A=in1.pdf B=in2.pdf, then):

• A1-21 - take range from in1.pdf
• Bend-1odd - take all odd pages from in2.pdf in reverse order
• A72 - take a single page from in1.pdf
• A1-21 Beven A72 - assemble pages from both in1.pdf and in2.pdf
• Awest - rotate entire in1.pdf document 90 degrees
• B - use all of in2.pdf
• A2-30evenleft - take the even pages from the range, remove 90 degrees from each page's rotation
• A A - catenate in1.pdf with in1.pdf
• Aevenwest Aoddeast - apply rotations to even pages, odd pages from in1.pdf
• Awest Bwest Bdown - catenate rotated documents

Collates pages from input PDFs to create a new PDF. Works like the cat operation except that it takes one page at a time from each page range to assemble the output PDF. If one range runs out of pages, it continues with the remaining ranges. Ranges can use all of the features described above for cat, like reverse page ranges, multiple ranges from a single PDF, and page rotation. This feature was designed to help collate PDF pages after scanning paper documents.

Splits a single input PDF document into individual pages.

Also creates a report named doc_data.txt which is the same as the output from dump_data. The output section can contain a printf-styled format string to name these pages. For example, if you want pages named page_01.pdf, page_02.pdf, etc., pass output page_%02d.pdf to pdftk. If the pattern is omitted, then a default pattern g_%04d.pdf is appended and produces pages named pg_0001.pdf, pg_0002.pdf, etc. Encryption can be applied to the output by appending output options such as owner_pw, e.g.:

pdftk in.pdf burst owner_pw foopass

               Takes a single input PDF and rotates just the specified
               pages.  All other pages remain unchanged.  The page order
               remains unchanged.  Specify the pages to rotate using the
               same notation as you would with cat, except you omit the
               pages that you aren't rotating:

               [<begin page number>[-<end page number>[<qualifier>]]][<page
               rotation>]

               The qualifier can be even or odd, and the page rotation can
               be north, south, east, west, left, right, or down.

               Each option sets the page rotation as follows (in degrees):
               north: 0, east: 90, south: 180, west: 270, left: -90, right:
               +90, down: +180. left, right, and down make relative adjust-
               ments to a page's rotation.

               The given order of the pages doesn't change the page order in
               the output.

               Reads a single input PDF file and generates an FDF file suit-
               able for fill_form out of it to the given output filename or
               (if no output is given) to stdout.  Does not create a new
               PDF.

               Fills the single input PDF's form fields with the data from
               an FDF file, XFDF file or stdin. Enter the data filename
               after fill_form, or use - to pass the data via stdin, like
               so:

               pdftk form.pdf fill_form data.fdf output form.filled.pdf

               If the input FDF file includes Rich Text formatted data in
               addition to plain text, then the Rich Text data is packed
               into the form fields as well as the plain text.  Pdftk also
               sets a flag that cues Reader/Acrobat to generate new field
               appearances based on the Rich Text data.  So when the user
               opens the PDF, the viewer will create the Rich Text appear-
               ance on the spot.  If the user's PDF viewer does not support
               Rich Text, then the user will see the plain text data
               instead.  If you flatten this form before Acrobat has a
               chance to create (and save) new field appearances, then the
               plain text field data is what you'll see.

               Also see the flatten, need_appearances, and replacement_font
               options.

               Applies a PDF watermark to the background of a single input
               PDF.  Pass the background PDF's filename after background
               like so:

               pdftk in.pdf background back.pdf output out.pdf

               Pdftk uses only the first page from the background PDF and
               applies it to every page of the input PDF.  This page is
               scaled and rotated as needed to fit the input page.  You can
               use - to pass a background PDF into pdftk via stdin.

               If the input PDF does not have a transparent background (such
               as a PDF created from page scans) then the resulting back-
               ground won't be visible - use the stamp operation instead.

               Same as the background operation, but applies each page of
               the background PDF to the corresponding page of the input
               PDF.  If the input PDF has more pages than the stamp PDF,
               then the final stamp page is repeated across these remaining
               pages in the input PDF.

               This behaves just like the background operation except it
               overlays the stamp PDF page on top of the input PDF docu-
               ment's pages.  This works best if the stamp PDF page has a
               transparent background.

               Same as the stamp operation, but applies each page of the
               background PDF to the corresponding page of the input PDF.
               If the input PDF has more pages than the stamp PDF, then the
               final stamp page is repeated across these remaining pages in
               the input PDF.

               Reads a single input PDF file and reports its metadata, book-
               marks (a/k/a outlines), page metrics (media, rotation and
               labels), data embedded by STAMPtk (see STAMPtk's embed
               option) and other data to the given output filename or (if no
               output is given) to stdout.  Non-ASCII characters are encoded
               as XML numerical entities.  Does not create a new PDF.

               Same as dump_data except that the output is encoded as UTF-8.

               Reads a single input PDF file and reports form field statis-
               tics to the given output filename or (if no output is given)
               to stdout. Non-ASCII characters are encoded as XML numerical
               entities. Does not create a new PDF.

               Same as dump_data_fields except that the output is encoded as
               UTF-8.

               This operation currently reports only link annotations.
               Reads a single input PDF file and reports annotation informa-
               tion to the given output filename or (if no output is given)
               to stdout. Non-ASCII characters are encoded as XML numerical
               entities. Does not create a new PDF.

               Changes the bookmarks, page labels, page sizes, page rota-
               tions, and metadata in a single PDF's Info dictionary to
               match the input data file. The input data file uses the same
               syntax as the output from dump_data. Non-ASCII characters
               should be encoded as XML numerical entities.

               This operation does not change the metadata stored in the
               PDF's XMP stream, if it has one. (For this reason you should
               include a ModDate entry in your updated info with a current
               date/timestamp, format: D:YYYYMMDDHHmmSS, e.g. D:201307241346
               - omitted data after YYYY revert to default values.)

               For example:

               pdftk in.pdf update_info in.info output out.pdf

               Same as update_info except that the input is encoded as
               UTF-8.

               Packs arbitrary files into a PDF using PDF's file attachment
               features. More than one attachment may be listed after
               attach_files. Attachments are added at the document level
               unless the optional to_page option is given, in which case
               the files are attached to the given page number (the first
               page is 1, the final page is end). Attachments at the docu-
               ment level may be tagged with a relationship among Source,
               Data, Alternative, Supplement, and Unspecified (default).

               For example:

               pdftk in.pdf attach_files table1.html table2.html to_page 6
               output out.pdf

               pdftk in.pdf attach_files in.tex relation Source output
               out.pdf

               Copies all of the attachments from the input PDF into the
               current folder or to an output directory given after output.
               For example:

               pdftk report.pdf unpack_files output ~/atts/

               or, interactively:

               pdftk report.pdf unpack_files output PROMPT

            The output PDF filename may not be set to the name of an input
            filename. Use - to output to stdout.  When using the dump_data
            operation, use output to set the name of the output data file.
            When using the unpack_files operation, use output to set the
            name of an output directory.  When using the burst operation,
            you can use output to control the resulting PDF page filenames
            (described above).

            If an output PDF user or owner password is given, the output PDF
            encryption algorithm defaults to AES-128. The weaker RC4 40-bit
            and RC4 128-bit algorithms can be chosen by specifying
            encrypt_40bit or encrypt_128bit (discouraged).

            Permissions are applied to the output PDF only if an encryption
            strength is specified or an owner or user password is given.  If
            permissions are not specified, they default to 'none,' which
            means all of the following features are disabled.

            The permissions section may include one or more of the following
            features:

            Printing
                   Top Quality Printing

            DegradedPrinting
                   Lower Quality Printing

            ModifyContents
                   Also allows Assembly

            Assembly

            CopyContents
                   Also allows ScreenReaders

            ScreenReaders

            ModifyAnnotations
                   Also allows FillIn

            FillIn

            AllFeatures
                   Allows the user to perform all of the above, and top
                   quality printing.

            If an encryption strength is given but no passwords are sup-
            plied, then the owner and user passwords remain empty, which
            means that the resulting PDF may be opened and its security
            parameters altered by anybody.

            These are only useful when you want to edit PDF code in a text
            editor like vim or emacs.  Remove PDF page stream compression by
            applying the uncompress filter. Use the compress filter to
            restore compression.

            Use this option to merge an input PDF's interactive form fields
            (and their data) with the PDF's pages. Only one input PDF may be
            given. Sometimes used with the fill_form operation.

            Sets a flag that cues Reader/Acrobat to generate new field
            appearances based on the form field values.  Use this when fill-
            ing a form with non-ASCII text to ensure the best presentation
            in Adobe Reader or Acrobat.  It won't work when combined with
            the flatten option.

            Use the specified font to display text in form fields. This
            option is useful when filling a form with non-ASCII text that is
            not supported by the fonts included in the input PDF. font name
            may be either the file name or the family name of a font, but
            using a file name is more reliable. Currently only TrueType
            fonts with Unicode text are supported.

            When combining pages from multiple PDFs, use one of these
            options to copy the document ID from either the first or final
            input document into the new output PDF. Otherwise pdftk creates
            a new document ID for the output PDF. When no operation is
            given, pdftk always uses the ID from the (single) input PDF.

            If your input PDF is a form created using Acrobat 7 or Adobe
            Designer, then it probably has XFA data.  Filling such a form
            using pdftk yields a PDF with data that fails to display in
            Acrobat 7 (and 6?).  The workaround solution is to remove the
            form's XFA data, either before you fill the form using pdftk or
            at the time you fill the form. Using this option causes pdftk to
            omit the XFA data from the output PDF form.

            This option is only useful when running pdftk on a single input
            PDF.  When assembling a PDF from multiple inputs using pdftk,
            any XFA data in the input is automatically omitted.

            Many PDFs store document metadata using both an Info dictionary
            (old school) and an XMP stream (new school).  Pdftk's
            update_info operation can update the Info dictionary, but not
            the XMP stream.  The proper remedy for this is to include a
            ModDate entry in your updated info with a current date/time-
            stamp. The date/timestamp format is: D:YYYYMMDDHHmmSS, e.g.
            D:201307241346 - omitted data after YYYY revert to default val-
            ues. This newer ModDate should cue PDF viewers that the Info
            metadata is more current than the XMP data.

            Alternatively, you might prefer to remove the XMP stream from
            the PDF altogether - that's what this option does.  Note that
            objects inside the PDF might have their own, separate XMP meta-
            data streams, and that drop_xmp does not remove those.  It only
            removes the PDF's document-level XMP stream.

            By default, pdftk runs quietly. Append verbose to the end and it
            will speak up.

            Depending on the compile-time settings (see ASK_ABOUT_WARNINGS),
            pdftk might prompt you for further input when it encounters a
            problem, such as a bad password. Override this default behavior
            by adding dont_ask (so pdftk won't ask you what to do) or do_ask
            (so pdftk will ask you what to do).

            When running in dont_ask mode, pdftk will over-write files with
            its output without notice.

Collate scanned pages

frater@supremae:~$ pdftk A=even.pdf B=odd.pdf shuffle A B output collated.pdf

or if odd.pdf is in reverse order:

frater@supremae:~$ pdftk A=even.pdf B=odd.pdf shuffle A Bend-1 output collated.pdf

The following examples use actual passwords as command line parameters, which is discouraged (see the SECURITY CONSIDERATIONS section).

Decrypt a PDF

frater@supremae:~$ pdftk secured.pdf input_pw foopass output unsecured.pdf

Encrypt a PDF

Using AES-128 (the default), withhold all permissions (the default)

frater@supremae:~$ pdftk 1.pdf output 1.128.pdf owner_pw foopass

Same as above, except password 'baz' must also be used to open output PDF

frater@supremae:~$ pdftk 1.pdf output 1.128.pdf owner_pw foo user_pw baz

Same as above, except printing is allowed (once the PDF is open)

frater@supremae:~$ pdftk 1.pdf output 1.128.pdf owner_pw foo user_pw baz allow printing

Apply RCA 40-bit encryption to output, revoking all permissions (the default). Set the owner PW to 'foopass'.

frater@supremae:~$ pdftk 1.pdf 2.pdf cat output 3.pdf encrypt_40bit owner_pw foopass

Join two files, one of which requires the password 'foopass'. The output is not encrypted.

frater@supremae:~$ pdftk A=secured.pdf 2.pdf input_pw A=foopass cat output 3.pdf

Join in1.pdf and in2.pdf into a new PDF, out1.pdf

frater@supremae:~$ pdftk in1.pdf in2.pdf cat output out1.pdf

or (using handles):

frater@supremae:~$ pdftk A=in1.pdf B=in2.pdf cat A B output out1.pdf

or (using wildcards):

frater@supremae:~$ pdftk *.pdf cat output combined.pdf

Remove page 13 from in1.pdf to create out1.pdf

frater@supremae:~$ pdftk in.pdf cat 1-12 14-end output out1.pdf

or:

frater@supremae:~$ pdftk A=in1.pdf cat A1-12 A14-end output out1.pdf

Uncompress PDF

Uncompress PDF page streams for editing the PDF in a text editor (e.g., vim, emacs)

frater@supremae:~$ pdftk doc.pdf output doc.unc.pdf uncompress

Repair a PDF's corrupted XREF table and stream lengths, if possible

frater@supremae:~$ pdftk broken.pdf output fixed.pdf

Burst a single PDF document into pages and dump its data to doc_data.txt

frater@supremae:~$ pdftk in.pdf burst

Burst a single PDF document into encrypted pages. Allow low-quality printing

frater@supremae:~$ pdftk in.pdf burst owner_pw foopass allow DegradedPrinting

Write a report on PDF document metadata and bookmarks to report.txt

frater@supremae:~$ pdftk in.pdf dump_data output report.txt

Rotate Rotate the first PDF page to 90 degrees clockwise

frater@supremae:~$ pdftk in.pdf cat 1east 2-end output out.pdf

Rotate an entire PDF document to 180 degrees

frater@supremae:~$ pdftk in.pdf cat 1-endsouth output out.pdf