andrechalella Posted July 15, 2014 Share Posted July 15, 2014 I needed to remove EXIF rotation data from a photo I took with my phone, so I fired up paint.net and proceeded to open the .jpg, save it as .bmp and then save it again as .jpg. To my surprise, the data was still there. Make: SAMSUNG Camera Model Name: GT-I9300 Software: paint.net 4.0.1 Modify Date: 2014:07:15 01:07:29 3 hours, 28 minutes, 59 seconds ago Y Cb Cr Positioning: Centered Exposure Time: 1/17 F Number: 2.60 Exposure Program: Aperture-priority AE ISO: 125 Exif Version: 0220 Date/Time Original: 2014:07:15 01:07:29 3 hours, 28 minutes, 59 seconds ago Create Date: 2014:07:15 01:07:29 3 hours, 28 minutes, 59 seconds ago Components Configuration: Y, Cb, Cr, - Shutter Speed Value: 1/17 Aperture Value: 2.60 Brightness Value: 1.42578125 Exposure Compensation: 0 Max Aperture Value: 2.6 Metering Mode: Center-weighted average Flash: No Flash Focal Length: 3.7 mm User Comment: (4,096 bytes binary data) Flashpix Version: 0100 Color Space: sRGB Image Size: 2,048 × 1,152 Interoperability Index: R98 - DCF basic file (sRGB) Interoperability Version: 0100 Exposure Mode: Auto Resolution: 96 pixels/inch White Balance: Auto Scene Capture Type: Standard Orientation: Rotate 90 CW <-- REASON WHY I WAS DOING THIS X Resolution: 72 Y Resolution: 72 generated by http://regex.info/exif.cgi However, when I tried opening the .bmp from scratch and saving as .jpg, it worked as intended, i.e the new .jpg had almost no EXIF. I'm pretty sure paint.net shouldn't have kept the EXIF through the .bmp. Am I wrong in that? Quote Link to comment Share on other sites More sharing options...
Rick Brewster Posted July 15, 2014 Share Posted July 15, 2014 Did you re-open the image after you saved it as a BMP? Paint.NET doesn't dump the EXIF data from memory when you save. Also, what version of Paint.NET are you using? In 4.0, the rotation metadata is now honored when you open an image and then it's discarded when you save (to avoid an obvious double-rotation bug). Quote The Paint.NET Blog: https://blog.getpaint.net/ Donations are always appreciated! https://www.getpaint.net/donate.html Link to comment Share on other sites More sharing options...
andrechalella Posted July 16, 2014 Author Share Posted July 16, 2014 Paint.NET 4.0.1. Here's exactly what I did: Open original.jpg Save as flat.bmp Save as flat.jpg Here I discovered that flat.jpg still had EXIF. Now, without closing Paint.NET nor flat.jpg (or doing anything else in it, for that matter): Open flat.bmp Save as flat.jpg Here I checked that flat.jpg didn't have EXIF anymore. Paint.NET doesn't dump the EXIF data from memory when you save. Yeah, that's what I figured. However, I expected that, once I saved the .jpg as .bmp, it would be as if I had closed the .jpg and just opened the .bmp. Scratching all the previous context, that is. Don't you agree that's a fair expectation? Regards. Quote Link to comment Share on other sites More sharing options...
BoltBait Posted July 16, 2014 Share Posted July 16, 2014 The way it works now gives you a little more flexibility. However, now that you know how it works, you'll be able to get rid of the EXIF data when you want. Quote Download: BoltBait's Plugin Pack | CodeLab | and a Free Computer Dominos Game Link to comment Share on other sites More sharing options...
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