County GIS department sent me 3 sheets from a very large filed map as TIFFs. I opened sheet 2 (790kb) in Acrobat Reader DC, then saved it and brought it into Carlson Survey 2004. I could not open sheets 3 (1663 kb) or 4 (1635 kb) in Acrobat nor bring it into the dwg, getting the prompt that it is somehow defective. I called and a GIS technician said I will have to wait for the GIS administrator is back in tomorrow. I figure I would give a download another try. During the download I noticed I was given the option to "show" it rather than "download" it. I got a message that the site wanted me to open it with AlternaTIFF, so I said yes and my PC downloaded AlternaTIFF and the tiff opened up on my PC. I then saved it, but neither Acrobat or Carlson would handle it.
Question is , What Might Be The Problem?
File too large for Acrobat Reader, meaning I have to buy Pro?
Files actually corrupted as the prompts suggest?
Something else?
Anyone have experience with AlternaTIFF? I cannot seem to find it on my PC? Is it a Cloud thing?
Not being able to put the TIFFS into a drawing is not a problem for this particular project since I have paper copies. But I have seen the same corrupt file notice on other TIFFS before. This courthouse is a 98 mile round trip which I made because I had not yet been on the site and I wanted as much info to make a good quote. I also had some other problems in getting other info from their limited website so being there helped.
Last solution tomorrow is a jpeg. For a while I was very happy with Mr. Sid but every time Windows updated it would wipe Mr. Sid off of my PC.
Paul in PA
My go-to solution to image file format issues is IrfanView. Powerful image processing program. It's a free program, and written without a whole lot of user-interface junk. It will open huge images, and can convert them to a multitude of formats. No geo-referencing ability, though. You need to install GhostScript with it in order to open and save PDF files.
I have had problems opening TIFF files when I was using windows 7 but once I updated to windows 10, the files opened without any problem.
I normally use ERDAS Imagine to open these files, but if you do not have the license, I recommend you download QGIS, which is a free source software. The images you are getting from the GIS department (.tiff) are most probably georeferenced, with QGIS you will be able to explore the image and its geospatial information as well.
Cheers,
GeomÌÁgico
Irfranview is a great program.
I've had a problem saving files as a *.tiff from some sources that I open the file rather than download the file directly from the site and vise-versa.
Also, some things created on the XP don't open in Win7 and vise-versa.
Some of it has to do with programs needing an update and then the update causes other programs to not function properly with other programs that were or have no updates to install.
Another ghost in the machine...........