File optimisation (compression)

If you have a file that is too large, we suggest you take the following steps:

  1. Save and submit the file in PDF format
  2. Use the free online tool https://www.pdfcompress.com/ to optimise (reduce) the size of the PDF file
  3. Or download the free program Free PDF Compressor for non-commercial use from http://www.freepdfcompressor.com

If you have a large PPTX, PNG/JPEG or PDF file, you can optimise it using the free online tool Wecompressor (https://www.wecompress.com) – user guide