http://pdfhummus.com/ - try this. great piece of library with full
functionality(except rendering), almost free of bugs. proved working
solutions in couple of big companies.
On Wed, Apr 24, 2013 at 8:46 AM, 彭益存 <pengyi...@baosight.com> wrote:
> Hi,****
>
> ** **
>
> I use PoDoFo v0.9.2 to manipulate the existing pdf files in order to add
> and remove a watermark. These pdf files are possible to be created by all
> kinds of PDF creator tools. And they may follow the PDF specification v1.4
> or v1.5.****
>
> Last week I read the code samples in PoDoFo source Dictory and wrote a
> demo program to add watermark of text type in pdf files and it worked well.
> But there are still some problems: (In my program, I set the watermark in
> the center of every page with an angle of 45 degrees in anti-clockwise. The
> font size is 72 as the attached image files show.)****
>
> ** **
>
> **1. **Watermark can not display normal in Some pdf file. Its font size
> is very small and as if it flips when rendered by Adobe Reader.****
>
> **2. **It does support Unicode encoding and font to display Chinese
> using “Arial Unicode MS” , but it embeds the font in the output file by
> PoDoFo. This makes the final volumn too big. For example, 412KB before
> adding watermark turns to be 15,376KB.****
>
> **3. **And I want to remove the watermark added by my program too, but I
> have not found the appropriate APIs in PoDoFo.****
>
> ** **
>
> Can you give some suggestion? Thanks.****
>
> ** **
>
> And you do a great job!****
>
> ** **
>
> Yicun Peng****
>
>
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>
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