The direct publicly accessible URL of the file to generate previews. This can be a temporary signed Amazon S3/Cloudfront URL or contain basic authentication credentials.
An array of sizes of the extracted thumbnails, in pixels. Expressed as widthxheight. Specifying only the width(e.g "300") will generate a thumbnail with a fixed width and varying height. You can also only shrink larger images to fit into the give size and never enlarge(e.g "300x400>").
The format of the extracted thumbnails. Supported values are "jpg", "jpeg", and "png".
An array of string values of additional metadata to extract. Possible values are "ocr", "psd", "exif", "ocr", "checksum", "multimedia", "webpage", and "sketch".
The document pages that you want to extract thumbnails for. You can specify a range or individual pages separated by commas. Example: "1-3" or "1,3,5". You can also specify the special value of "all" to extract all pages. Default value is "1".
A URL that we will POST anytime results for requests previews are ready. Read more info about webhooks here.