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I am writing a paper in latex and need to insert .eps figure. I drew the figure in powerpoint, then saved the .ppt as .pdf and opened it in photoshop. I noticed when I opened it, the size was like 127cm*48cm and the dpi is 300, the file was 274MB, I changed the dpi to 600 and it became 900+MB... so large... I then croped the picture from it and save it as eps. I did changed it the size of the picture to about 10cm*3 (I kept the width/length ratio unchanged) but still the file is about 200MB. too large to me to submit it. Where did I a do it wrong? I noticed that my other eps directly exported from Matlab are just 30kB. Thank you.

daydayup
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    This question is definitely an off-topic. It has nothing to do with LaTeX. Also, this kind of workflow is awful. I have no idea why you need to use PowerPoint with PDF as an intermediate. – m0nhawk Aug 04 '15 at 15:23
  • @m0nhawk I consider preparing an external image for input in LaTeX in best quality as on-topic. – Heiko Oberdiek Aug 04 '15 at 15:33

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I would avoid saving possible vector data as bitmap in PhotoShop. White margins can be cropped at PDF level via pdfcrop. The PDF can be converted to EPS by pdftops -eps.

Heiko Oberdiek
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  • thank you for the answer! I will convert pdf to eps directly https://www.cs.bu.edu/~reyzin/pictips.html – daydayup Aug 04 '15 at 15:48