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Text overlay, SVG
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tuom....@gmail.com
Jan 29, 2014, 6:18:12 AM1/29/14
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Hello list,
from what I understand, PDF.js draws the PDF content onto a canvas element and then overlays bunch of divs on top of it for text selection, right? If I did not need the selection, could I somehow disable the creation of the whole text overlay? Would it speed-up the rendering?
On related note, I think I read somewhere sometime (wiki plans?) than there was some kind of plan to evaluate the possibility of using SVG instead of canvas, did that go somewhere? Is there any conclusion/opinion about it?
Thanks,
T.
from what I understand, PDF.js draws the PDF content onto a canvas element and then overlays bunch of divs on top of it for text selection, right? If I did not need the selection, could I somehow disable the creation of the whole text overlay? Would it speed-up the rendering?
On related note, I think I read somewhere sometime (wiki plans?) than there was some kind of plan to evaluate the possibility of using SVG instead of canvas, did that go somewhere? Is there any conclusion/opinion about it?
Thanks,
T.
J. Ryan Stinnett
Jan 29, 2014, 12:11:10 PM1/29/14
to tuom....@gmail.com, dev-p...@lists.mozilla.org
On Wed, Jan 29, 2014 at 5:18 AM, <tuom....@gmail.com> wrote:
> Hello list,
>
> from what I understand, PDF.js draws the PDF content onto a canvas element
> and then overlays bunch of divs on top of it for text selection, right? If
> I did not need the selection, could I somehow disable the creation of the
> whole text overlay? Would it speed-up the rendering?
>
You can disable the text layer by adding "#textLayer=off" at the end of the
> Hello list,
>
> from what I understand, PDF.js draws the PDF content onto a canvas element
> and then overlays bunch of divs on top of it for text selection, right? If
> I did not need the selection, could I somehow disable the creation of the
> whole text overlay? Would it speed-up the rendering?
>
PDF URL. See the debugging wiki[1] for more options.
I am not sure what impact it has on performance. You could instrument the
code with some console.time/timeEnd statements and compare.
[1]: https://github.com/mozilla/pdf.js/wiki/Debugging-pdf.js
- Ryan
Tuom Larsen
Jan 30, 2014, 10:27:23 AM1/30/14
to J. Ryan Stinnett, dev-p...@lists.mozilla.org
Thanks!
On Wed, Jan 29, 2014 at 6:11 PM, J. Ryan Stinnett <jry...@gmail.com> wrote:
> On Wed, Jan 29, 2014 at 5:18 AM, <tuom....@gmail.com> wrote:
>>
On Wed, Jan 29, 2014 at 6:11 PM, J. Ryan Stinnett <jry...@gmail.com> wrote:
> On Wed, Jan 29, 2014 at 5:18 AM, <tuom....@gmail.com> wrote:
>>
>> Hello list,
>>
>> from what I understand, PDF.js draws the PDF content onto a canvas element
>> and then overlays bunch of divs on top of it for text selection, right? If I
>> did not need the selection, could I somehow disable the creation of the
>> whole text overlay? Would it speed-up the rendering?
>
>
>>
>> from what I understand, PDF.js draws the PDF content onto a canvas element
>> and then overlays bunch of divs on top of it for text selection, right? If I
>> did not need the selection, could I somehow disable the creation of the
>> whole text overlay? Would it speed-up the rendering?
>
>
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