🐛 [placeholder-pdfkit010] Fix parsing issue #281

[mazali01]

Fixing issue #281

[vbuch]

I only wonder if they can look like 12 0 R 13 0 R with any any whitespace in between. I'm a not rusty on this package already.

Thank you for the PR. Will try to get a release today/tomorrow.

[coveralls]

coverage: 100.0% (+0.4%) from 99.636%
when pulling 2db7eb7 on mazali01:bugfix/field-ids-parsing
into 4235fe7 on vbuch:develop.

[mazali01]

Hi, Thanks for your notes on spaces inside the string value, I have created a PR: #283, You can check it out.
It addresses the spaces better in more robust way.
Thank you.