There are apps, software, and browser extensions which can manipulate a web page or document to allow for better readability of the affected page. Some of these options include:
Adobe Scan
App for your mobile device to scan documents to PDFs and recognize text. (Free).
ClaroRead
Text to Speech, convert print materials to digital, spellcheck, word prediction. Pairs with Dragon Professional for dictation. (Paid).
Dolphin EasyReader
Access audiobooks and ebooks from participating libraries. Manipulate size, font, and colour of ebook text. Import text to enable text to speech on non-library materials. For iOS, Android, Kindle, and Windows. (Free).
Dualless
Splits the browser window into two with adjustable ratio, simulating a dual monitor environment. Chrome extension. (Free).
JustRead
View web articles in a more readable, attractive, and custom format. (Free with paid version).
ScannerPro 7
iOS app to convert scans to editable text. (Free).