Search found 31 matches
- 2014-08-20T22:29:59-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Re: Converting problematic pdf's to png
Just a quick comment (in case this effects anyone else) - my .tif to pdf conversions started to go a bit "light". That is, a lot of the lines of the original file to convert because invisible in the convertedPNG.png file. So, I tweaked the command by increasing the density from 72 to 300 . Lucky ...
- 2014-08-19T22:47:56-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Re: Converting problematic pdf's to png
What works for me sounds good to me! Then this is the command I'll use. Splendid! Thank-you for your continued patience and time.
Code: Select all
convert -density 72 convert.tif -scale @550000 -flatten PNG8:converted-hooray.png
- 2014-08-19T19:45:09-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Re: Converting problematic pdf's to png
Either of our (snibgo or my) last command lines (posted above) seem to produce good quality results. Using JPG as output will cause a loss in quality, since JPG compression does not do a good job on regions of the same color. It could be your GS version. I was using Ghostscript 9.10 on IM 6.8.9.7 ...
- 2014-08-19T19:43:07-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Re: Converting problematic pdf's to png
The two PDFs are different. convert.pdf contains a vector image. convert2.pdf contains a raster image. For the vector image, I suggest: convert -density 72 convert.pdf -flatten PNG8:c0.png This doesn't need rescaling to fit with 550000 pixels. The difficulty is in creating an automated script that ...
- 2014-08-19T19:30:10-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Re: Converting problematic pdf's to png
Hello gentlemen, thank-you for your replies. I have to dash off for a few hours but will work through them upon my return. (Thank-you) Just one quick question though: If I swapped to have a .jpg output as apposed to .png would it make things simpler? First you have not said what is wrong with the ...
- 2014-08-19T14:55:47-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Re: Converting problematic pdf's to png
Thank you all for getting back to me, in turn: dlemstra : Your suggestion is actually how I previously had my command. Since "-density 300" never seemed make a difference (to successful or unsuccessful) conversions, I dropped it out. Regardless my command is now revised to your suggestion. Re ...
- 2014-08-19T03:02:06-07:00
- Forum: Users
- Topic: tif to png no longer works with IM6.8.9
- Replies: 9
- Views: 7019
Re: tif to png no longer works with IM6.8.9
Hi fmw42 and Snibgo, just a little note in the hope I may catch your attention as you helped me with my png problem previously - - - please if you get a minute could you take a look at my related post: Converting problematic pdf's to png Thank-you once again for your help both now and in the past ...
- 2014-08-19T02:57:17-07:00
- Forum: Users
- Topic: Converting problematic pdf's to png
- Replies: 15
- Views: 12149
Converting problematic pdf's to png
Hi there My PROBLEM convert convert.pdf -scale @550000 PNG8:convertedPDF.png My command above works wonderfully on some pdf's but on others it does not as shown in the picture. There is not enough detail in convertedPDF.png to identify a basic drawing shape. http://michellepace.com/pics/imagemagic ...
- 2014-08-18T22:00:40-07:00
- Forum: Users
- Topic: Update IM on cygwin to v6.8.9-7?
- Replies: 2
- Views: 3413
Update IM on cygwin to v6.8.9-7?
Hello, Could anyone please let me know how I can update IM to version 6.8.9-7 on cygwin? Tried Method #1: Use installer The installer does not list v 6.8.9-7 Tried Method #2: Use apt-cyg Does't work $ identify -version Version: ImageMagick 6.7.1-10 2011-08-21 Q16 http://www.imagemagick.org Copyright ...
- 2014-08-17T23:42:59-07:00
- Forum: Users
- Topic: tif to png no longer works with IM6.8.9
- Replies: 9
- Views: 7019
Re: tif to png no longer works with IM6.8.9
Try it and see! Yes, that works too. Not because of transparency, but because JPG can't store 1 bit/channel/pixel. The usual JPG format is 8 bits/channel/pixel, so it works the same as Fred's "PNG8:" suggestion... Great thanks Snibgo. I gave it a try just after posting but never had any previously ...
- 2014-08-17T22:18:00-07:00
- Forum: Users
- Topic: tif to png no longer works with IM6.8.9
- Replies: 9
- Views: 7019
Re: tif to png no longer works with IM6.8.9
Hello.
Since this problem had to do with transparency and contrary to .png files .jpeg files don't have transparency - - could I have avoided the problem completely by choosing to convert .tif to .jpg as apposed to .png?
Thanks again,
Michelle
Since this problem had to do with transparency and contrary to .png files .jpeg files don't have transparency - - could I have avoided the problem completely by choosing to convert .tif to .jpg as apposed to .png?
Thanks again,
Michelle
- 2014-06-23T21:22:49-07:00
- Forum: Users
- Topic: tif to png no longer works with IM6.8.9
- Replies: 9
- Views: 7019
Re: tif to png no longer works with IM6.8.9
Did you try my command with the PNG8: before the output? Oops! Sorry Fred I completely missed your recommendation. I've just tried your command now and it works! ...It is a 1-bit image, which naturally doesn't scale well if kept at 1-bit. "-depth 16" cures it. Or, as Fred says, "PNG8:". Equally ...
- 2014-06-23T13:22:35-07:00
- Forum: Users
- Topic: tif to png no longer works with IM6.8.9
- Replies: 9
- Views: 7019
Re: tif to png no longer works with IM6.8.9
Is there anything I should be installing in addition to ImageMagick? I remember installing vcredist_x64.exe with the earlier version for stability... (I think). Any clues on how I can figure out what the problem is? I really need this functionality
Thanks again.
Thanks again.
- 2014-06-23T12:54:59-07:00
- Forum: Users
- Topic: tif to png no longer works with IM6.8.9
- Replies: 9
- Views: 7019
tif to png no longer works with IM6.8.9
Hi there, I have 2 PCs with IM: Old PC: ImageMagick-6.7.1-10-Q16-windows-dll installed New PC: ImageMagick-6.8.9-2-Q16-x64-dll installed I run this command on each: (1) convert original.tif[0] -scale @400000 newpng_6.7.1.png (6.7.1 this works) Magick: original.tif: unknown field with tag 292 (0x124 ...
- 2011-09-07T09:05:19-07:00
- Forum: Users
- Topic: Create png from only first page of pdf file
- Replies: 2
- Views: 10262
Re: Create png from only first page of pdf file
great. thank-you. it works perfectly.