On Sun, Sep 15, 2019 at 5:11 AM rich404 <for...@gimpusers.com> wrote:
> > There are some things to remember for a PDF. > > It is a 'finished' format meant for viewing or printing. The document > size, A4 , > US Letter...is a property. For printing pixels-per-inch (ppi aka dpi) has > an > effect but not always an easy way to determine the original size. see > screenshot > https://i.imgur.com/g8IP95S.jpg Scanned documents in particular can have > various > original ppi. > > A PDF document can be in forms, vectors or a bitmap ( say a scanned > image) or a > mix, image a bitmap + text. also, a pdf is an "image" of the original document. adobe created the format as a universal document format to be shared and the recipient did not have to have the program(s) used to create the document (i.e. ms office or libreoffice). so a pdf is like the johnny cash song about working in a cadillac plant and building his caddy over the years with the different year parts. i guess you could say that it's a faux page layout program similar ti scribus, indesign, quarkexpress, etc. hope this helps > > On Sun, Sep 15, 2019 at 5:11 AM rich404 <for...@gimpusers.com> wrote: > >Hello. I am Carlos and its my first question to this board, wich i > >think it will > >be great because it´s so great as the articles and tutorials and > >downloads i am > >watching ... > > > >The thing is... > >When i open a PDF file, and extracting the images and saving the > >images... > >1) wich one should I choose? Open in layers, or image? > >2) is there a way to save/export the image in the size of the pdf? > >because i saw > >there is a default size (width and height) wich is saved, but u can > >edit that > >size ... so --- > >My question basically is : when i go to file / export it have specific > >size (the > >image to be exported). Is that size the original quality from PDF, or > >it is the > >default from gimp? > > > >Thank you and i wish you understood my question. > > There are some things to remember for a PDF. > > It is a 'finished' format meant for viewing or printing. The document > size, A4 , > US Letter...is a property. For printing pixels-per-inch (ppi aka dpi) has > an > effect but not always an easy way to determine the original size. see > screenshot > https://i.imgur.com/g8IP95S.jpg Scanned documents in particular can have > various > original ppi. > > A PDF document can be in forms, vectors or a bitmap ( say a scanned > image) or a > mix, image a bitmap + text. > > Gimp is not always the best tool, It might be possible to open in some > other > application and copy an image "as original" to Gimp . This example using > LibreOffice https://i.imgur.com/a9N3Mtx.jpg but not if the document comes > from a > scan. > > Gimp is a bitmap editor. Open a PDF in Gimp and it is converted to 100% > bitmap > regardless of original format. > > Open a PDF in Gimp and the default ppi is 100. For quality, change this to > 300 > ppi. Only need a specific page? Then select just that page. screenshot: > https://i.imgur.com/OH5Sw2s.jpg > > Then use the rectangular select tool, position and size over the image, > Edit -> > Copy for the contents. Edit -> Paste-As -> New image. Export that as > required. > > Not the same size in pixels as an extracted image? All depends on the ppi. > > -- > rich404 (via www.gimpusers.com/forums) > _______________________________________________ > gimp-user-list mailing list > List address: gimp-user-list@gnome.org > List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list > List archives: https://mail.gnome.org/archives/gimp-user-list > _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
