Re: How to make a pdf read only?

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Author: Michael Butash via PLUG-discuss
Date:  
To: Main PLUG discussion list
CC: Michael Butash
Subject: Re: How to make a pdf read only?
Try master pdf editor, this makes you hate pdf's less. Use the old/free
one, or you will hate it again.

I deal with the whole "you need to sign *this* thing" all the time, so I
open their crap pdf in master pdf editor, insert a transparent png of my
signature, save, and send it back. They never know I didn't reprint, sign,
scan, and feed them back whatever. I can do pretty much whatever to most
pdf's as people don't lock them down (hint - I do, no one else does).

If they don't use pdf security, you can do most anything to a pdf in master
pdf editor if you've ever used photoshop, gimp, illustrator, inkscape, or
whatever. Saves me the hassle of signing dead trees as a silly fad from
the last century.

-mb


On Tue, Aug 10, 2021 at 1:06 PM David Schwartz via PLUG-discuss <
> wrote:

> PDF files can only be edited with something like Acrobat or a tool that
> lets you do that.
>
> So they’re effectively “read only” by default without the right tools.
>
> Even then, when you create a PDF file, depending what you use, you can set
> an option that prevents or allows the text to be selected and copied to the
> clipboard.
>
> But just about every OCR app in existence lets you feed it PDF files and
> get an editable Word or text file back.
>
> Not to mention there are websites that will OCR a few pages of a PDF file
> for free.
>
> (At my last job, they had a client with a couple dozen offices around the
> country. Someone at each office would grab a stack of invoices and drop
> them into a scanner every night and scan them; it would save the lot to a
> big PDF file that they’d upload to an FTP site on our server. I wrote an
> app that would periodically check for new files and run them through an OCR
> app to extract data from each invoice and put it into a database. The
> previous software would scan the entire page and save the results, although
> we only needed a few fields. Scanning only the parts of the page with the
> data we were looking for sped things up quite a bit. But the point is that
> the PDF files their scanners created were pretty useless even with Acrobat
> since they were just a big batch of scanned images.)
>
> I think you’re asking the wrong question. Try stating the problem you’re
> actually trying to address.
>
> -David Schwartz
>
>
>
> On Aug 10, 2021, at 12:42 PM, Shawn Badger via PLUG-discuss <
> > wrote:
>
> One option would be to turn it into an image which is then put into the
> pdf. Not impossible to change just more work to change.
>
> On Fri, Aug 6, 2021 at 11:48 PM Steve Litt via PLUG-discuss <
> > wrote:
>
>> joe--- via PLUG-discuss said on Fri, 06 Aug 2021 16:48:59 -0700
>>
>> >How to make a pdf read only?
>> >
>> >I'm sure I've done this in the past,
>> >but can't remember how. Searched the
>> >net but found no solution.
>> >
>> >Do not want to convert to an image
>> >but just want a read-only pdf.
>>
>> I think it's impossible to make a truly read-only pdf. Somebody could
>> always open it in Vim and tamper with it, or use one of the several PDF
>> modification tools to convert it to a form that can be written to. Or
>> import it into Inkscape, modify it as an image, and convert back to PDF.
>>
>> If you mean make it so it's not modifyable in Acrobat, there's probably
>> a way to do that.
>>
>> SteveT
>>
>> Steve Litt
>> Spring 2021 featured book: Troubleshooting Techniques of the Successful
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