Re: [libreoffice-users] Writer - Merging PDFs

Le Wed, 29 Jan 2014 09:52:32 -0500,
Anthony Baldwin <baldwinlinguas@gmx.com> a écrit :

> On 1/29/2014 10:07 AM, Dominique Michel wrote:
> > Le Tue, 28 Jan 2014 20:41:42 -0500,
> > charles meyer <reachmeplace@gmail.com> a écrit :
> >
> > > I've got 3 or so separate PDF files.
> > >
> > > I'd like to merge them all into one PDF file in Writer in Office
> > > 3.6.2.2
> > >
> > > Each page of each PDF file has a lot of empty space around the
> > > graphic image.
> > >
> > > Ex. 2 inches above and below the graphic on each page and a good 3
> > > inches on each side of each graphic is white, empty space.
> > >
> > > Is there a way to eliminate all the empty space around each
> > > graphic in in each page in each PDF or once all the PDFs are
> > > merged into one larger PDF?
> >
> > On Linux, you can open a pdf file with a pdf viewer, as example with
> > evince, select what you want to copy, do a right click and select
> > copy. Then in writer you can copy it. Only the text will be copied,
> > and you will loose most of the page layout and things like links.
> > Also, it will not work if the pdf is copy protected.
>
> If the pdf is selectable/copyable text, you can also export it
> directly to a plain text file with pdftotext (on linux).
>
>
> > For the pictures, the viewer comes with a set of console tools like
> > pdfimages that can extract the raw pictures, or pdftoppm that can
> > extract the whole pdf as a set of pictures. Be aware that images
> > into a pdf can be a real mess, because they can be rotated,
> > mirrored, or split into small pieces. In the 2 first cases, convert
> > can be used to rotate and mirror back the pictures, in the last
> > case, only pdftoppm can let you extract the pictures.
>
> When clients send me pdf files full of images to be translated,
> I often just snap a screenshot of them and manage the images in GIMP.
> In such cases, I am reconstructing their document in LO (in English,
> whereas the originals come to me in any of French, Portuguese or 
> Spanish), so then I just insert the images into the document in LO.
>
> Of course, I could probably just import the whole PDF into GIMP
> (pages as images, not layers), and then grab the images I need by
> cropping the pages for them.

I made a bash script that use pdfimages, pdftoppm and convert. In most
cases (when the images are not split into small pieces), it is faster
than working with gimp.

Dominique

> Tony

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