E-readers, particularly the Kindle, have recently introduced PDF support, but users report challenges with reading scientific papers due to small screen sizes and formatting issues. Many find that native PDF uploads result in unreadable documents, especially on 6" displays. To improve readability, users recommend converting PDFs into more manageable formats, such as using the "pdf2lrf" program, which enhances layout and contrast. The Kindle DX, with its larger screen, is suggested for better handling of scientific content. While some users appreciate the Kindle for general reading, they note that it may not replace physical copies for research purposes due to limitations in viewing figures and tables. Alternatives like the Pocketbook and Onyx Boox are also considered for better PDF handling. Overall, while e-readers can be convenient, they may not fully meet the needs of those reading technical documents.