When uploading, you should go to the page view mode of Pixiv and click the button to the top left of the image that opens the largest version in a separate window/tab. Copy and paste that link (it should be formatted like the one I'm about to put in there; click Edit to see it) into the source box on Danbooru's upload page and it will directly pull the image off Pixiv and automatically put the source link in the image's info box. You also seem to have missed a page.
EDIT: Please also have a readthrough of howto:upload, howto:tag, and howto:rate. EDIT2: Also, I curse you for taking me there, cuz I just spent forever going through 182 pages of 長門 posts trying to find the source of illust #40131177 and didn't find it.
When uploading, you should go to the page view mode of Pixiv and click the button to the top left of the image that opens the largest version in a separate window/tab. Copy and paste that link (it should be formatted like the one I'm about to put in there; click Edit to see it) into the source box on Danbooru's upload page and it will directly pull the image off Pixiv and automatically put the source link in the image's info box. You also seem to have missed a page.
EDIT: Please also have a readthrough of howto:upload, howto:tag, and howto:rate. EDIT2: Also, I curse you for taking me there, cuz I just spent forever going through 182 pages of 長門 posts trying to find the source of illust #40131177 and didn't find it.