Hello Hans, that's exactly what I've been looking for! (And yes, I've asked one or more times, with a solution that seemed to me a bit "forced" or "non-clear", so the latest solution looks perfectly!) Best regards, Lukas On Mon, 14 Aug 2017 16:55:09 +0200, Hans Hagen wrote:

On 8/14/2017 1:08 PM, Procházka Lukáš Ing. wrote:

...

Hello,

is there a way how to get the following info from a PDF file via Lua/Ctx API?:

- first: number of pages of the PDF,

- next: for each page: get width, height and orientation (portrait/landscape) or rotation (+90,+ 180, +270 or so) of i-th page.

this probably has come up several times now, anyway

\getfiguredimensions[test.pdf] \dorecurse {\noffigurepages} { \getfiguredimensions[test.pdf][page=#1] \figurenaturalwidth ,\figurenaturalheight,\figureorientation,\figurerotation\par }

in lua you can either use the img library (see luatex manual) or context helpers

local data = figures.push("foo.pdf") figures.identify() figures.check() figures.pop() inspect(data)

i'll add:

function figures.getinfo(name,page) if type(name) == "string" then name = { name = name, page = page } end if name.name then local data = figures.push(name) figures.identify() figures.check() figures.pop() return data end end

so that one can do

local n = "ms.pdf" local d = figures.getinfo(n)

if d then for i=1,d.used.pages do local p = figures.getinfo(n,i) if p then local u = p.used print(u.width,u.height,u.orientation) end end end

etc etc

-- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn Bezová 1658 147 14 Praha 4 Mob.: +420 702 033 396

Procházka Lukáš Ing. mailto:LPr@pontex.cz 16. August 2017 um 12:11 Hello Hans,

thank you for implementation 'figures.getinfo()'; two points:

1. Code:

---- \startluacode

local n = "x:/Users/MMi/Akce/I-6_Krusovice.DSP-ZDS/Admin/Jednani/2017-07-07-SU-Rakovnik/ZJ.pdf"

local d = figures.getinfo(n) ... ----

prints (probably to-string converted) resulting table:

" close source > level 3, order 8, name 'd://Lukas/ConTeXt/Styles/PxLetter.sty' table={ ["request"]={ ["arguments"]=false, ["cache"]=false, ["color"]=false, ["controls"]=false, ["conversion"]=false, ["display"]=false, ["format"]=false, ["height"]=false, ["label"]=false, ["mask"]=false,

["name"]="x:/Users/MMi/Akce/I-6_Krusovice.DSP-ZDS/Admin/Jednani/2017-07-07-SU-Rakovnik/ZJ.pdf",

... }, ["status"]={ ... }, ["used"]={ ["colordepth"]=0, ["depth"]=0, ["format"]="pdf",

["fullname"]="x:/Users/MMi/Akce/I-6_Krusovice.DSP-ZDS/Admin/Jednani/2017-07-07-SU-Rakovnik/ZJ.pdf",

["height"]=55380991, ... }, } "

- Is it intend? Or residual debugging status?

2. Is there a Ctx built-in converter which would convert width and height (e.g. here: ["height"]=55380991) from "height units" to milimeters? \starttext

\startluacode local length = "55380991" context(number.topoints(length)) context.par() context(number.todimen(length,"pt")) \stopluacode \stoptext Wolfgang