[poppler] About pdf to image

杨辉强 huiqiangyang at yunrang.com
Sat Dec 17 16:47:04 PST 2011


Hi, all:
    In web search engine, I want to support the pdf snapshot. So I want 
to convert pdf files to images and save the images in a database. I 
don't want to change the poppler code.
Because that's notconvenient for upgrade the poppler's code.

Thank you for your precious advices.

On 12/17/2011 03:16 PM, Brad Hards wrote:
> On Sat, 17 Dec 2011 02:09:21 PM 杨辉强 wrote:
>>      I am a newbie to poppler. I use utils/pdftoppm.cc to convert a pdf
>> file into jpeg images.The generated images are save to disk files. Now I
>> wish to know whether it can save the images in memory such as a
>> vector<std::string>.  Wishing you can give me some advices.
> I'm sure that is possible, but you'd need to make some code changes (and
> consider whether an arbitrary binary blob, containing nulls, is really a good
> idea in a std::string). The code changes should basically be taking the
> existing output writer and copying in to a memory location instead. I don't
> see you'd need to make any real popper changes. How you integrate that depends
> on the application you're trying to create.
>
> What is the end-use for this?
>
> Brad
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