Thread by @RisenVon

We’ve all wanted to download high resolution images of medieval manuscripts for personal use in PowerPoint or DH projects. So… time to explore some solutions for those who don’t yet know. #medievaldownload

The amazing Dezoomify will help you download many images, including those from the British Library's digitised manuscripts site.
Dezoomify is here: ophir.alwaysdata.net/dezoomify/dezo… #medievaldownload

Just paste in your URL and watch Dezoomify work its magic! #medievaldownload

Here’s an example of Dezoomify in action. #medievaldownload

On a Mac, use “Copy Image” and then switch to the Preview app and "File>New from Clipboard”. This works best in Chrome or Firefox. If you have tips for Safari, please share them! #medievaldownload

For IIIF sites, you can often just modify the URL to get the high resolution image. E.g. for Parker on the Web, drag a thumbnail from the page selector into the URL field of your browser.
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Then replace the antepenultimate section of the URL with “full", e.g. stacks.stanford.edu/image/iiif/gs2…
becomes
stacks.stanford.edu/image/iiif/gs2…
(see screenshot) #medievaldownload

Next, let’s take a look at Cambridge Digital Library. Very helpfully, they provide a “Download” button. Nice! The download is not the maximum resolution though, so if you need the highest quality, keep reading... #medievaldownload

For high res from the Cambridge Digital Library site click on the “Open in Mirador” button and then… #medievaldownload

Next, drag the relevant thumbnail to the URL field of your browser. And then… #medievaldownload

Finally, replace the last 4 sections of the URL with “/info.json” (see example image below) and then paste the resultant URL into Dezoomify (ophir.alwaysdata.net/dezoomify/dezo…)
#medievaldownload

Don’t want to leave Digital Bodleian out of the mix! First of all, click on the “Open in Mirador” button. #medievaldownload

Next, drag the image thumbnail to the URL field of your browser.
#medievaldownload

Finally, replace the last 4 sections of the URL with “/info.json” (see example image below) and then paste the resultant URL into Dezoomify (ophir.alwaysdata.net/dezoomify/dezo…)
#medievaldownload

Our next repository is the Digital Vatican. This is more difficult as although they use IIIF, they only allow Mirador, etc. to view a lower resolution image than the one that they have on their website. But still, let’s see what we can do…
#medievaldownload

First click on the "Bibliographic Information" button
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Next, click on the IIIF button and wait a few seconds for the IIIF manifest to appear. #medievaldownload

Using your browser’s search facility, track down the URL for the folio that you want, e.g. 79v. The URL you want ends with “jp2” (see screenshot). #medievaldownload

Now copy that URL and paste it into Dezoomify and add “/info.json”. Then you’re set!
NB: this is not as high a resolution as on the Digital Vatican site, but it's pretty good. #medievaldownload

If you know how to get the full quality image, please do share that info! #medievaldownload

Next repository? Gallica! First of all, click on the zoom button and zoom to max zoom. #medievaldownload

Now we’re going to need to use the Developer Tools in Chrome. So, View>Developer>Inspect elements.

(There are equivalents in other browsers, e.g. in Safari, it’s Develop>Show JavaScript console). #medievaldownload

Next click on “Application”
(In Safari, click on Resources)
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Scroll down to “Frames"
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Find an entry for "Native.jpg” and “Copy link address”. #medievaldownload

Now alter the region and resolution sections to “full” (see example below) #medievaldownload

Well, that's it for the moment. If you’ve got suggestions or requests, let us all know. And please do share hints and tips for these and other sites. #medievaldownload