cannot install on ubuntu 18.04 with pdftk installed

I have pdftk running at the command line... per Ubuntuask site

... and then installed PDFchain PPA from the pdfchain-team repository using commands on the website :

sudo add-apt-repository ppa:pdfchain-team/ppa
on reading package lists I had various 404 errors at:
 http://ppa.launchpad.net/pdfchain-team/ppa/ubuntu bionic Release
  404 Not Found [IP: 91.189.95.83 80]
ALSO for "xenial Release"
ALSO "public key not available" on ".... chrome /deb stable InRelease" & "... earth/deb stable Release.gpg"
THEN quite a few 404s on "http://download.virtualbox.org/virtualbox/debian <18.04.01> Release " links

that resulted in a number of 'no Release file' messages
and led to probably (my guess) the main issue a GPG Error:

 GPG error: http://dl.google.com/linux/chrome/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 78BD65473CB3BD13
E: The repository 'http://dl.google.com/linux/chrome/deb stable InRelease' is no longer signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://dl.google.com/linux/earth/deb stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 78BD65473CB3BD13

THESE errors all flowed through to the "apt-get update"

ULTIMATELY on the "install":

rob@ubuntudesk:/$ sudo apt-get install pdfchain
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package pdfchain

indicating the pdfchain package hadn't been successfully installed.?

pdftdk runs OK:

rob@ubuntudesk:/$ pdftk
SYNOPSIS
       pdftk <input PDF files | - | PROMPT>
      [ input_pw <input PDF owner passwords | PROMPT> ]
      [ <operation> <operation arguments> ]
      [ outpu

For getting pdftk onto 18.04 specifically, I've found that this works:

    get 18.10 version of the deb for pdftk-java
    install dependencies from normal 18.04 repos
    dpkg install pdftk-java package downloaded from 18.10

IE:

$ wget wget http://launchpadlibrarian.net/383018194/pdftk-java_0.0.0+20180723.1-1_all.deb
$ sudo apt install default-jre-headless libcommons-lang3-java libbcprov-java
$ sudo dpkg -i pdftk-java_0.0.0+20180723.1-1_all.deb

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answered Jun 12 at 13:34
Joel Kleier
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