giftabc.blogg.se - Open source pdf editor signing and converter

#OPEN SOURCE PDF EDITOR SIGNING AND CONVERTER HOW TO#
#OPEN SOURCE PDF EDITOR SIGNING AND CONVERTER PDF#
#OPEN SOURCE PDF EDITOR SIGNING AND CONVERTER SOFTWARE#

The goal here is to keep only the data added in Xournal (e.g. Then export to PDF, say as signature.pdf.

#OPEN SOURCE PDF EDITOR SIGNING AND CONVERTER PDF#

Still in Xournal, select "Page → Apply To All Pages", then "Page → Page Style → plain" (this will remove everything from the original PDF file).

Add the signature as an image (and possibly other things) with Xournal.

Open the original PDF file orig.pdf with Xournal.

Here's a solution that preserves the PDF layout, the text, and forms. Pdftk "$f.pdf" stamp "$f.1.signature.pdf" output "$f.1.signed.pdf" # stamp the original pdf with the new signature template pdf # create a new pdf with the same size as the original pdf with transparent background and the signature image positioned at the final positionĬonvert -density $density -size $pdfsize xc:transparent $ "$s" -resize $p% $ -geometry +$x+$y -composite "$f.1.signature.pdf" # just in case someone needs this: get the size of the signature image Pdfsize=$(identify -format "%wx%h" "$f.pdf") This command creates a new pdf origin.1.signed.pdf where the signature.png is scaled to 10% of it's size and positioned to 400圆90 in the pdf. sign.sh origin signature.png 10 400 690

a png of your signature, somewhere in the pdf, you run the script like this: Given some pdf called origin.pdf you want to add an image, e.g. I'm not sure if this might also work for multipage pdf's. Inspired by the answer from bodo I created a simplified version in hope others can reuse/modify this easily for their purpose to sign a single page pdf. Pdftk $f.signed.pdf output $f.signenc.pdf user_pw PROMPT owner_pw $(openssl rand -base64 32) allow AllFeatures Pdftk $f.$page.pdf stamp $f.$ output $f.$Įcho "You have to click two times. Size=$(identify -format "%wx%h" $f.$page.pdf)ĭisplay -density $sdatax$sdata -immutable -alpha off -update 1 -debug X11 -log "%e" -title "sign $f.pdf#$page" $f.$ 2>&1 >/dev/null | \ Pdftk $f.pdf cat $page output $f.$page.pdf Identity=$(identify -format "%w,%h,%x,%y" signature.png)Įcho "Please give the signature area with two clicks and finish by pressing ‘q’!" Wipe $f.$ $f.$ $f.signed.pdf signature.pngĮcho "Signing document $f.pdf on page $page." Pagecount=$(pdftk $f.pdf dump_data | grep NumberOfPages | sed "s/.*: //") #dependencies: pdftk, ImageMagick, gpg, wipe, opensslīo=0.2 #baseline overlap in relation to y-size of the signature

cleanup intermediate files containing the signature with wipe.

only extract the specific page from the pdf file.

overlay the signature with pdftk stamp to prevent image quality degradation.

use stdbuf -oL and the -update option to have a live preview.

#OPEN SOURCE PDF EDITOR SIGNING AND CONVERTER HOW TO#

Luckily I found this question and the script of Emmanuel Branlard contains the idea on how to do it (with xv). While putting my own signature commands into a shell script, I was looking for a way to interactively select the area where the signature should go. Network World: Using Gimp to modify PDF files.Instructables: Inserting an Image Into an Existing PDF And/or Converting Multiple Images to Pdf : 4 Steps.

#OPEN SOURCE PDF EDITOR SIGNING AND CONVERTER SOFTWARE#

Text annotations and image additions to PDF file using free software.

In the latter case i just print, sign, and scan again! See also Unfortunately this won't work if you need for example to sign every page of a multi page document. I do this regularly when i need to sign single page documents, and it takes me more or less five minutes.

Open the signature on top of the document as a new layer (File -> Open as layer).

Convert white to alpha in the signature if the background of the document is not white.

Apply a threshold on the signature if the white is not white enough.

The latter is going to be in PDF format, that can be opened by Gimp

You should have a file with the signature (even a picture taken with the phone or webcam), and a file with the document to be signed.

Thus if you are familiar with GIMP, i would recommend trying it. Open PDF with GIMP and add the signature image A lot of people recommend Xournal, but i found it to work as a version of Gimp that i can't use.