I'm having a tremendous amount of difficulty getting the electronic filling system to accept my application. I'm using Open Office and Microsoft Office Word to create documents and convert them to PDF's. Neither one is being accepted by the USPTO efile system. Does anyone have any advice at all?
Common problems when uploading to EFS-Web include:
1) page size: make sure you are within the limits (8.5x11 inches or DIN A4)
2) fonts: all fonts used in the document must be embedded in the pdf
3) layers: make sure you have flattened your pdf prior to upload
Source and more information: uspto.gov/sites/default/files/ebc/portal/efs/pdf-creation.pdf