Answers.Body: <p>You can disable image scaling by setting <code>Output Profile</code> to <code>Tablet</code> in <code>Page setup</code> :) <a href="https://i.sstatic.net/6TWBG.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/6TWBG.png" alt="enter image description here" /></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-08-19T11:40:22.720Z
Answers.LastActivityDate: 2021-08-19T11:40:22.720Z
Answers.UserDisplayName: maciej
Answers.Body: <p>You should look for a Calibre option for JPG files that does not cause them to lose quality. Look through the manual. </p>
  
  <p>I know Adobe Distiller has options to keep high-quality JPG files. Does Calibre call Distiller or does it have it's own PDF maker? </p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-09-07T13:20:26.933Z
Answers.LastActivityDate: 2019-09-07T13:20:26.933Z
Answers.UserDisplayName: Bulrush
Body: <p>I have a ePUB with a bunch of formulas as JPG files.<br>
  In the ePUB they are super crisp, but during ePUB to PDF conversion with calibre all the images become blurry, I'd imagine they are JPG compressed.<br>
  How can this be fixed?</p>
  
Tags: <epub><calibre><pdf><image>
Title: JPG loses quality during ePUB to PDF conversion with calibre
UserDisplayName: Fluffy
ThreadText: # JPG loses quality during ePUB to PDF conversion with calibre
  
  (Asked by: username_0 on 2019-08-15)
  
  I have a ePUB with a bunch of formulas as JPG files.  
  In the ePUB they are super crisp, but during ePUB to PDF conversion with calibre all the images become blurry, I'd imagine they are JPG compressed.  
  How can this be fixed?
  
  **Tags:** epub, calibre, pdf, image
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_1 on 2021-08-19. Score: 1
  
  You can disable image scaling by setting `Output Profile` to `Tablet` in `Page setup` :) [![enter image description here](https://i.sstatic.net/6TWBG.png)](https://i.sstatic.net/6TWBG.png)
  
  
  ---
  
  ### Answer by username_2 on 2019-09-07. Score: 0
  
  You should look for a Calibre option for JPG files that does not cause them to lose quality. Look through the manual.
  
  I know Adobe Distiller has options to keep high-quality JPG files. Does Calibre call Distiller or does it have it's own PDF maker?
  
  
  ---
  
  