3 Replies Latest reply on Sep 27, 2013 6:39 AM by Steven L. Gotz

    Still having problem with PDF document video - Text Blurred on Scaling Down

    AMITVIDEO

      Need to scale down a captured PDF document video (.mp4). but text become blurry after scale down. Any suggestions to keep the text clear and readable ?

        • 1. Re: Still having problem with PDF document video - Text Blurred on Scaling Down
          Steven L. Gotz Level 5

          Stop changing the shape of the text.

           

          Keep the correct ratio.

           

          You are not just scaling it down, you are changing the shape. Stop that!

           

          Oh, and double posting is NOT allowed.

          • 2. Re: Still having problem with PDF document video - Text Blurred on Scaling Down
            AMITVIDEO Level 1

            Sorry for posting it twice, but still not getting any solution.\

             

            BTW I am not changing the shape of image and of course maintaing the correct ratio.

            • 3. Re: Still having problem with PDF document video - Text Blurred on Scaling Down
              Steven L. Gotz Level 5

              Those two things are not the same shape. If what I am about to say is too basic, please forgive me. It might help someone else later.

               

              The ratio of your captured image (1434 x 958) is calculated as:

               

              1434 / 958 = 1.496868475991649

               

              The ratio of your export is calculated as:

               

              640 / 480 = 1.333333333333333

               

              Just get the representation of them into one document, I created a Photoshop file big enough to hold them both. Then I scaled it down and took a screen shot to fit this forum's restrictions on file size.

               

              If you look at the first image, it is difficult to see that they are different shapes.

               

              Capture.PNG

              In order to make them easier to see, I scaled down the larger layer, using the Shift key to ensure that the scale is perfectly proportional.

              Capture.PNG

               

              Now you can easily tell that the ratio of 1434x958 is much wider than the ratio of 640 X 480.

               

              That means that you are changing the shape of the image when you export.

               

              If you are concerned about the long edge, you could divide 640 by 1.496868475991649 and export the image at 640X428 and get closer. It is not optimum, but should look better. Optimum would have been to size your PDF to where the longer edge was evenly divisible by 16. But, too late for that.

               

              Another choice would be to edit the video in a 640X480 sequence, and scale the PDF video down to fit that sequence - leaving a letterbox look (black bars on top and bottom). That might help the image stay sharp. Then export to 640X480 from there.