I can't seem to upload maps from my computer.

I've been trying to upload a few maps from my computer but the status bar seems to stop at a 3rd of the way complete and just hangs. I tested a small token image and that uploaded fine.  What is the size limit on file uploads? The maps I'm trying to load are 7mb - 10mb. Is this to big?

The limit for files is 5MB. I suggest reducing the DPI to reduce the file size.  - Gauss

It's hard to lower the DPI for some maps without lowering the quality. Is there anyway to load larger files? Is it something the dev team is working on? 

Matthew A., you could cut the map into peices. Currently there is no way to load larger files.  - Gauss

Any good tips on lowering the DPI? I'm not a graphics artist and try to get maps that are already completed for my purposes. I have a set that I really would like to use but most of them weigh in at the 5+ mb mark. I used GIMP to export them out as JPG's and lowered the quality a little which seems to have done the trick but if there is another or better way to accomplish this (especially a way to keep the transparency around the edges of some maps in the PNG format) then I'm all ears. 

At 100% zoom, each square on the Roll20 grid is 70 pixels wide and high.  At 150% zoom, the image is about 105 pixels.  Images should generally be uploaded at a size of at least 105 dpi where each "inch" in this case covers the area you want to be in a single square on the map.   Uploading images with at least 105 dpi allows players to zoom in without loss of quality. Typically I try to upload tiles to the marketplace at around 210 or 350 dpi so that GMs have more flexibility in how large they want to resize them, but for personal use I'd suggest 140 dpi to help keep your file sizes at a minimum without loss of quality when displayed on Roll20. Typically PNG-24 image format for web and devices is preferred, but for very large maps where file size is a concern you'll probably have to switch to using JPG file formats.  If your file is still above 5mb, then you can either cut it up in to individual segments to upload seperately, or you can save the JPG at a poorer quality.

I should probably double note that Kristin is right about dpi being a purely "print" oriented construct.  I just use dpi to help me better visualize how maps are going to look at different sizes on the screen.  IE, if I want to give the GM the option of doubling the size of one of my map pieces and still have it look good, then I'll create the map with a dpi of at least 210 where the inch represents what I expect to be included in a single cell.  At 150% zoom that'll allow a player to still view the map at pristine quality even if the GM has stretched it out to twice it's intended size.

Hello,  So I ran into this problem as well. No worries, I reduced the file size down to below 5MB (that information would be really useful in the Help&Docs section BTW) and I've tried uploading my new, smaller file. It's still not working, I guess because it's still trying to upload the previous larger file. Now I can't upload anything, almost as if that larger file is blocking upload. Is there a way to cancel an upload? Stop an upload? Disable a currently running, never gonna happen b/c it's too big upload?  Thanks,  Jake

Ah, now this would explain why I'm struggling to upload a 5.4mb file. Could we at least get some kind of helpful error on the uploader that says this when attempting to upload a file >5mb? Then I, along with others would have known straight away what we were doing wrong.

There is a small reference to it on the tabletop help file but I will point out to Kristin that this needs a more obvious statement. Kristin is reworking the Help File system (major overhaul, dont expect anything immediately).  - Gauss

Oh indeed, it could do with making more obvious. Though as I said, an alert of some description when making an attempt to upload a file larger than is possible. It'd save a whole heap of time for folks and save them from trudging through help docs for what is essentially a small detail.

Agreed, a dialog box rejecting the file would be ideal. I will pass it on.  - Gauss

I find on certain sites, that a previous file I have deleted or supposedly deleted is STILL in their system, unless I change the name of the file and re-upload. Just adding a simple 1 or 2 on the end of the same file, but one you might have saved and resaved at a smaller size will convince the upload system that it is a completely different file. Using the same name seems to just keep the same file loading or stalling. So the work around for me is renaming... but of course files have to be much smaller in general...  hope that helps.

Bobby, our system allows multiple files of the same name to be uploaded. This is actually a problem since I cannot tell the difference and when I try to clear out files I might actually delete the one I am using. LOL! - Gauss