Clipping multiple PDFs
Hello, I am trying to put multiple PDF’s that were typeset differently into one document without modifying the individual files themselves. I came up with this: \starttext \copypages[ass1.pdf][][scale=950] \copypages[ass2.pdf][][scale=950] … stoptext The problem is the original page numbers show and I’d prefer that it did not. So I thought maybe I could clip all the page numbers from every page (since they are all in the same position across all the pages) but I don’t know how to do this with the \clip command. Any ideas? I already tried using \input but it gives some weird output in some places. It doesn’t have to use this method as long as it does what I need it to do. Thanks in advance. Jethro
On 8/18/22 02:13, jethro Reuel via ntg-context wrote:
Hello,
I am trying to put multiple PDF’s that were typeset differently into one document without modifying the individual files themselves. [...] The problem is the original page numbers show and I’d prefer that it did not. So I thought maybe I could clip all the page numbers from every page (since they are all in the same position across all the pages) but I don’t know how to do this with the \clip command. Any ideas? I already tried using \input but it gives some weird output in some places. It doesn’t have to use this method as long as it does what I need it to do.
Hi Jethro, it works using \clip with \externalfigure inside a loop (\dorecurse). With \getfiguredimensions you get the number of pages of each PDF document (\noffigurepages). The following source both generates the source PDF document and the imposed result with clipped pages (just to see a sample of the commands mentioned above): \startbuffer[newbuff] \setuppapersize[A3] \setupbodyfont[sans, 1200pt] \starttext \dorecurse{8} {\startmakeup[page][pagestate=start, align=center, style=\bf] \recurselevel \stopmakeup} \stoptext \stopbuffer \startmode[*first] \savebuffer[newbuff][source_page.tex, prefix=no] \executesystemcommand{context --purgeall source_page.tex} \stopmode \setuplayout[page] \setuppapersize[A6][A4] \setuppaper[nx=2, ny=2] \setuparranging [XY] \starttext \startnotmode[*first] \def\Doc{source_page.pdf} \getfiguredimensions[\Doc] \dorecurse{\noffigurepages} {\clip[hoffset=96mm, voffset=136mm, width=105mm, height=148mm] {\externalfigure[\Doc][page=\recurselevel]}} \stopnotmode \stoptext Just in case it might help, Pablo
Thanks for the solution Pablo. It works well. I wanted to add more pdfs (which also has many pages) and found it was easier for me to reason in the lua side of things. This is what I have at the moment: \starttext \startluacode local function doc(fil) return fil..[[.pdf]] end local function disppdf(fname) n = 1 repeat context.externalfigure({fname},{ page = n, width = "200mm", scale = "950" }) n = n + 1 until n == context(context.noffigurepages) end local pdffiles = {"ass1", "ass2", "ass3", "ass4", "ass5", "ass6", "ass7", "ass8"} for index=1,#pdffiles do local f = doc(pdffiles[index]) context.getfiguredimensions({f}) disppdf(pdffiles[index]) end \stopluacode \stoptext I didn’t know how to get an array (or indexed table or whatever you call it) in ConTeXt/Tex. My problem is now with context(context.noffigurepages). Am I calling it wrong? All I want to do is call \noffigurepages from the lua side. Is there something I am missing? Jethro On 21 Aug 2022, at 4:41 PM, Pablo Rodriguez via ntg-context < ntg-context@ntg.nl> wrote: On 8/18/22 02:13, jethro Reuel via ntg-context wrote: Hello, I am trying to put multiple PDF’s that were typeset differently into one document without modifying the individual files themselves. [...] The problem is the original page numbers show and I’d prefer that it did not. So I thought maybe I could clip all the page numbers from every page (since they are all in the same position across all the pages) but I don’t know how to do this with the \clip command. Any ideas? I already tried using \input but it gives some weird output in some places. It doesn’t have to use this method as long as it does what I need it to do. Hi Jethro, it works using \clip with \externalfigure inside a loop (\dorecurse). With \getfiguredimensions you get the number of pages of each PDF document (\noffigurepages). The following source both generates the source PDF document and the imposed result with clipped pages (just to see a sample of the commands mentioned above): \startbuffer[newbuff] \setuppapersize[A3] \setupbodyfont[sans, 1200pt] \starttext \dorecurse{8} {\startmakeup[page][pagestate=start, align=center, style=\bf] \recurselevel \stopmakeup} \stoptext \stopbuffer \startmode[*first] \savebuffer[newbuff][source_page.tex, prefix=no] \executesystemcommand{context --purgeall source_page.tex} \stopmode \setuplayout[page] \setuppapersize[A6][A4] \setuppaper[nx=2, ny=2] \setuparranging [XY] \starttext \startnotmode[*first] \def\Doc{source_page.pdf} \getfiguredimensions[\Doc] \dorecurse{\noffigurepages} {\clip[hoffset=96mm, voffset=136mm, width=105mm, height=148mm] {\externalfigure[\Doc][page=\recurselevel]}} \stopnotmode \stoptext Just in case it might help, Pablo ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___________________________________________________________________________________
On 8/22/22 17:46, Jethro Djan via ntg-context wrote:
Thanks for the solution Pablo. It works well.
Glad to read it worked for you, Jethro.
I wanted to add more pdfs (which also has many pages) and found it was easier for me to reason in the lua side of things. This is what I have at the moment:
I think this might be what you intend: \setuplayout[page] \starttext \doloopoverlist{ass1,ass2,ass3,ass4,ass5,ass6,ass7,ass8} {\def\Doc{\recursestring.pdf} \getfiguredimensions[\Doc] \dorecurse{\noffigurepages} {\externalfigure[\Doc] [page=\recurselevel, width=20cm, scale=950]}} \stoptext
I didn’t know how to get an array (or indexed table or whatever you call it) in ConTeXt/Tex.
\doloopoverlist & \recursestring are your friends here.
My problem is now with context(context.noffigurepages). Am I calling it wrong? All I want to do is call \noffigurepages from the lua side. Is there something I am missing?
The approach is totally different: "getnofpages" (http://www.pragma-ade.com/general/manuals/luametatex.pdf#search=getnofpages). BTW, your code crashed my session, CPU goes to 100% and RAM usage too. I wonder how your sample could be compiled fine by your system. I hope it helps, Pablo
Hello, Thanks to Pablo and Aditya for the solutions. Sometimes it is very difficult to find the right manuals and info for what you want to achieve for those of us new to ConTeXt. I found the stuff on context(context.noffigurepages) here ( https://wiki.contextgarden.net/Image_Placement) and I didn’t know the manual you linked to existed. I have also been searching for stuff about “low-level” stuff in ConTexT like the \doloopoverlist command. I hope to contribute to the online wiki as I become a better user of ConTeXt. On Tue, Aug 23, 2022 at 3:58 PM Pablo Rodriguez via ntg-context < ntg-context@ntg.nl> wrote:
On 8/22/22 17:46, Jethro Djan via ntg-context wrote:
Thanks for the solution Pablo. It works well.
Glad to read it worked for you, Jethro.
I wanted to add more pdfs (which also has many pages) and found it was easier for me to reason in the lua side of things. This is what I have at the moment:
I think this might be what you intend:
\setuplayout[page] \starttext \doloopoverlist{ass1,ass2,ass3,ass4,ass5,ass6,ass7,ass8} {\def\Doc{\recursestring.pdf} \getfiguredimensions[\Doc] \dorecurse{\noffigurepages} {\externalfigure[\Doc] [page=\recurselevel, width=20cm, scale=950]}} \stoptext
I didn’t know how to get an array (or indexed table or whatever you call it) in ConTeXt/Tex.
\doloopoverlist & \recursestring are your friends here.
My problem is now with context(context.noffigurepages). Am I calling it wrong? All I want to do is call \noffigurepages from the lua side. Is there something I am missing?
The approach is totally different: "getnofpages" ( http://www.pragma-ade.com/general/manuals/luametatex.pdf#search=getnofpages ).
BTW, your code crashed my session, CPU goes to 100% and RAM usage too. I wonder how your sample could be compiled fine by your system.
I hope it helps,
Pablo
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net
___________________________________________________________________________________
On 8/23/22 19:12, Jethro Djan via ntg-context wrote:
Hello,
[...] I have also been searching for stuff about “low-level” stuff in ConTexT like the \doloopoverlist command. https://wiki.contextgarden.net/System_Macros/Loops_and_Recursion should contain \doloopoverlist.
I have just added https://wiki.contextgarden.net/System_Macros/Loops_and_Recursion#\doloopoverlist. Jethro, would you be so kind to edit it, so it may help other newcomers? Many thanks for your help, Pablo
participants (3)
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Jethro Djan -
jethro Reuel
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Pablo Rodriguez