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  1. Confluence Data Center
  2. CONFSERVER-35129

Attached images resized to thumbnail appears to be blurry

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      Images attached to Confluence resized to thumbnail appears to be blurry or lose quality.

      Step To Reproduce

      1. Create a simple page.
      2. Upload all the attachments: attach2.jpg attach3.jpg
      3. Insert all of the attachments/images and resize the thumbnail. (resize the image smaller or change the px size)
      4. Save and observe the results.

      Expected Result

      Thumbnails should preserve the image quality.

      Observed Result

      Thumbnail image quality is tampered.

      1. Confluence 5.5.6
      2. Confluence 5.6.3

      Workaround

      Resize the image where it still preserves the quality.

      Note: Confluence 4.3 does not have this issue, it renders the thumbnails perfectly. You can resize to any px size (smaller) without losing the image quality.

        1. attach3.jpg
          1.52 MB
          Kok Yan Yong
        2. attach2.jpg
          72 kB
          Kok Yan Yong
        3. conf4.3_test.png
          237 kB
          Kok Yan Yong
        4. conf5.6.3_Test.png
          251 kB
          Kok Yan Yong
        5. conf5.5.6_test.png
          472 kB
          Kok Yan Yong

            [CONFSERVER-35129] Attached images resized to thumbnail appears to be blurry

            Michael added a comment -

            I have the same problem on version 6.1.1.

            Michael added a comment - I have the same problem on version 6.1.1.

            Deleted Account (Inactive) added a comment -

            I have this issue across all browsers on Confluence Server 6.0.5
            started happening after a server restart, was working fine before

            Deleted Account (Inactive) added a comment - I have this issue across all browsers on Confluence Server 6.0.5 started happening after a server restart, was working fine before

            Oleksii Gnatkevych added a comment -

            For those who stumble upon such problems:
            MAKE SURE your Firefox is not zooming your Confluence or has 'zoom text only' enabled.
            Some problems appear not to be a problem at all.

            Oleksii Gnatkevych added a comment - For those who stumble upon such problems: MAKE SURE your Firefox is not zooming your Confluence or has 'zoom text only' enabled. Some problems appear not to be a problem at all.

            Kok Yan Yong (Inactive) added a comment - - edited

            DSI added a comment - 36 minutes ago

            I found differences based on browsers.
            under IE thumbnail and photo are ugly
            Under chrome, thumbnail and photo are beautiful
            Under firefox, depending on the size of the thumbnail, it's either the thumbnail or the picture is bad.

            Kok Yan Yong (Inactive) added a comment - - edited DSI added a comment - 36 minutes ago I found differences based on browsers. under IE thumbnail and photo are ugly Under chrome, thumbnail and photo are beautiful Under firefox, depending on the size of the thumbnail, it's either the thumbnail or the picture is bad.

              honguyen Hoang Nguyen (Inactive)
              kyong Kok Yan Yong (Inactive)
              Affected customers:
              2 This affects my team
              Watchers:
              8 Start watching this issue

                Created:
                Updated:
                Resolved: