问题
Can't seem to find it in trunk. Is this actually part of the open-source Chromium project? Or is the source to this not actually released? Only mention I could find:
http://www.listware.net/201007/chromium-discuss/93274-chromium-discuss-chrome-pdf-viewer-source.html
回答1:
Fetch it with Git:
$ git clone https://pdfium.googlesource.com/pdfium
View and contribute:
- https://pdfium.googlesource.com/pdfium/+/master (Source browser)
- https://pdfium.googlesource.com/pdfium/+/master/LICENSE (BSD 3-clause)
- https://code.google.com/p/pdfium/ (Bug-tracker)
回答2:
Chromium just automatically embeds a page with PDF, the custom plugin is bundled up with Chrome. Adobe and Google has some mutual agreement:
You can right click and inspect the PDF Native Viewer to see yourself, you will see something like the following:
<html>
<body marginwidth="0" marginheight="0" bgcolor="rgb(38,38,38)">
<embed width="100%" height="100%" name="plugin" src="http://path/to/file.pdf" type="application/pdf">
</body>
</html>
回答3:
I just cite a snippet of the Chromium wiki (last updated on Nov 20, 2012):
The Chrome PDF plugin uses 3rd-party non-free code; no Free Software PDF plugin exists that supports all the PDF features we'd like (such as filling in forms). :(
回答4:
It is closed-source, just as native Flash plugin.
来源：https://stackoverflow.com/questions/3692598/wheres-the-source-code-to-the-native-pdf-viewer-in-google-chrome