A digital signature signs everything through the %%EOF of the file. Any
changes you make to page contents (including adding pages) will
invalidate any signatures already in the file. Even if those changes are
in an incremental Save section. Font objects in the signed document
can't be removed or modified. You could add a new font object in an
incremental Save, but the old font object will still physically remain.
Any changes to any bytes of the first file (to the first %%EOF) will
invalidate the signature.
Marc
On 6/27/2024 4:01 AM, Semmalai C wrote:
Dear Team,
In both the files i am using same font and othere resources. after merging
it has two font objects . how to remove the duplicate entries .
The objective is to maintain noting assume there is one master file one
user will write some content then will digitally sign and another person
will add comment and make digital sign same process will continue for N
number of entries
To achieve this i am doing this way
1. i will maintain one master file and maintain the book mark (
currentpage, currentoffset).
2. when user want add contents through program i will create new pdf file
(secondary.pdf) and leave space up to currentoffset
3. will merge the secondary.pdf to master.pdf and will sign
please guide . Thanks in advance
On Tue, Jun 25, 2024 at 1:22 PM Tilman Hausherr<thaush...@t-online.de>
wrote:
https://stackoverflow.com/questions/26256546/how-to-insert-an-pdpage-within-another-pdpage-with-pdfbox
On 25.06.2024 08:57, Semmalai C wrote:
Dear All,
i have two pdf files first.pdf and second.pdf . need to copy the content
of
first page of the second.pdf to the last page of first.pdf. assume in
the
last page of first.pdf has some content . same portion the second.pdf has
no content.
Need to get the content stream ,resources of first page of the second.pdf
and merge it to the last page of first.pdf
how to achieve please guide
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