I exported my AI project to pdf and saw some weird white transparent lines between shape

left is from ai right one is from pdf (look closely at hearth shape)

enter image description here

  • I closed this as a duplicate. If you feel the the duplicate question isn't helpful please make an edit going into further detail.
    – user9447
    Commented Aug 2, 2016 at 17:30

1 Answer 1


Those may be artefacts created by your .pdf viewer. Those are especially common when you view a print-ready cPDF on a screen. If you zoom in on the .pdf and they are still a single pixel wide or less, then they are artefacts and will not show in print.

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