Crowdmark is currently designed for pages of any size (including 8.5" x 11", legal, A4, portrait or landscape format), printed double or single-sided and stapled at the upper left corner. See Creating an assessment template for more information.
Please use the following scanner settings:
- Greyscale or color. At this time Crowdmark is not fully compatible with black and white images.
- 200 DPI scanning resolution in multi-page PDF format. This should result in images with dimensions 1700x2200 pixels.
- It is recommended to enable a “darker” setting if your scanner allows it. This helps light pencil marks to be seen more clearly.
- If you are using multiple choice bubble sheets, ensure that your scanner makes any extra space around the scan white. If the area where the staples were cut off is scanned in black it may interfere with the multiple choice autograder.
Crowdmark reads data in the QR codes on the pages in the assessment to route the scanned images to the right place for grading. It is important that the QR codes are not cut off in the printing or scanning steps.
Each file must be under 500 MB in size. It is not necessary to upload a single PDF file containing all the assessment images. The uploading can be done in batches. If scanned images are uploaded a second time, the new images will replace the old images.
Crowdmark also accepts scanned images in JPEG format but our preferred format is multi-page PDF.