Hi @ all,
Please ignore the post before, sometimes strange things happens when using short cuts. So i just installed a brand new wp on my local machine, downloaded the actual 1000° plugin and created a new ePaper. It works without any problems. So in most cases the error you get are issued by the pdf file you use. Please make sure your pdf observe our standard. We highly recommend keeping the PDF/A-1b standard.
1. Make sure the pdf is not protected by password.
2. Make sure the pdf file only contains only of single pages keeping the same format.
3. Make sure the colour mode is set to rgb.
4. Don′t use transparency or colour gradient on single layer. Bring them in line with the according pictures or objects. Keep the layer hierarchy as flat as possible.
5. Don′t use complex vector graphics in your document. Raster vector graphics before you upload the file.
6. All fonts must be embedded. Thats why we highly recommend only the usage of truetype fonts, cause most a opentype fonts can′t be embedded
properly.
7.Last but not least, make sure your pdf is not oversized.
Specially take care of point 4. and 6. Transparency and vector graphics are known as top sources of error. As the case may be, it could be your browser settings or plugins interfering the upload also. So if you get a error message like reported, please try the upload with a different browser. Firefox, Chrome and Safari are welcome.