What exactly do you need? You can just process each component on its own. With
a makefile or shell script, batch file, that should be easy enough.
Or, do you need to have correct cross references, page numbers, etc.? I was
asking a similar question two days ago, and Hans showed me how to add
information to the log file:
\writestatus{!}{SPLIT HERE: \the\realpageno}
You should be then able to extract the split points from the log file and
extract the components from the complete PDF.
Or, if you know that you will need to split your document at certain structure
elements (chapters, sections or so), it's even simpler.
The lua script below will split your PDF at each chapter. It uses pdftk for
splitting, but it should be easy to adapt this to context's own mechanism
mentioned by Hans in the other thread.
Denis
-- mit welchen Dateien arbeiten wir?
local base = assert(arg[1], "Keine Datei angegeben")
local pdf = base .. ".pdf"
local tuc = base .. ".tuc"
-- import .tuc-file /extension lua
local utilitydata = dofile(tuc)
local breakpoints = {}
local last_page = utilitydata.structures.counters.collected["realpage"][1][1]
print ("Letzte Seite: " .. last_page)
-- iterate over .tuc => get breakpoints
for index, content in pairs(utilitydata.structures.lists.collected) do
if (content["titledata"]["label"] == "chapter")
then
table.insert(breakpoints,content["references"]["realpage"])
end
end
-- welches sind die Breakpoints?
print("Wir haben folgende Breakpoints:")
for index, content in pairs(breakpoints) do
print (content)
end
-- wie viele Breakpoint haben wir?
function tablelength(T)
local count = 0
for _ in pairs(T) do count = count + 1 end
return count
end
local breakpoints_length = tablelength(breakpoints)
print ("Wir haben " .. breakpoints_length .. " Breakpoints.")
-- Extraktionsbereiche festlegen
local extractions = {}
for index, breakpoint in pairs(breakpoints) do
region = {}
local startregion = breakpoint
local nextstartregion = breakpoints[index + 1]
local stopregion;
if (nextstartregion == nil)
then
stopregion = last_page
else
stopregion = nextstartregion - 1
end
region["start"] = startregion
region["stop"] = stopregion
table.insert(extractions,region)
end
print ("Wir extrahieren ...")
for index, region in pairs(extractions) do
print("von " .. region["start"] .. " bis " .. region["stop"])
local outputfile = "article" .. index .. ".pdf"
local extract_command = "pdftk " .. pdf .. " cat " .. region["start"] .. "-"
.. region["stop"] .. " output " .. outputfile
os.execute(extract_command)
end
Von: ntg-context Im Auftrag von Alan Bowen
Gesendet: Montag, 1. März 2021 22:38
An: mailing list for ConTeXt users
Betreff: [NTG-context] outputting components in their own PDFs
I have a project-component setup and need to produce a single PDF file
containing all the components as well as a PDF file for each component. The
single file is easy. Is there a way to automate the generation of the PDF files
for the individual components?
Alan
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