# Orthomosaic and DSM size limit **URL:** \ **Category:** PIX4Dcloud Questions/Troubleshooting\ **Created:** [February 27, 2020, 7:57am UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764 "2020-02-27T07:57:55Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Lieven\_Emonts-gast](https://avatars.discourse-cdn.com/v4/letter/l/47e85d/32.png) [@Lieven\_Emonts-gast](https://community.pix4d.com/u/Lieven_Emonts-gast)\ **Post date:** [February 27, 2020, 7:57am UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/1 "2020-02-27T07:57:55Z")
Is there a size limit on both orthomosaic and DSM? If so, what is it? I tried importing a processed project onto Pix4DBim, but only the point cloud and mesh was accepted. Thanks, Lieven. ---
**Author:** ![Pix4D\_Alumni\_MV](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pix4d_alumni_mv/32/2071_2.png) [@Pix4D\_Alumni\_MV](https://community.pix4d.com/u/Pix4D_Alumni_MV)\ **Post date:** [February 28, 2020, 1:23pm UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/2 "2020-02-28T13:23:32Z")
Hi @Lieven_Emonts-gast, Please refer to this article: > **[FAQ - PIX4Dcloud](https://support.pix4d.com/hc/en-us/articles/215858503-Cloud-general-questions)** > > IN THIS ARTICLE > GeneralWhat is PIX4Dcloud?What are the differences between PIX4Dmapper and PIX4Dcloud? What are the differences between PIX4Dcloud and PIX4Dcloud Advanced? License / SubscriptionHow... ![image](https://global.discourse-cdn.com/pix4d/original/2X/9/987b460442f5b215248d3189f75df40e0e50d6c6.png) For technical reasons, it is not possible to process more than 4000 images. (Monthly users that have a Cloud allowance of 2500 cannot process more images than this). However sometimes projects having less images cannot be processed neither. It mostly depends on the project and it is hard to say if it will be successful or not. Hope this helps. Best ---
**Author:** ![Lieven\_Emonts-gast](https://avatars.discourse-cdn.com/v4/letter/l/47e85d/32.png) [@Lieven\_Emonts-gast](https://community.pix4d.com/u/Lieven_Emonts-gast)\ **Post date:** [March 2, 2020, 7:42am UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/3 "2020-03-02T07:42:20Z")
Hello @Pix4D_Alumni_MV But what is the limit of offline processed orthomosaic/dsm’s to upload to the Bim-cloud? Lieven. ---
**Author:** ![Pix4D\_Alumni\_MV](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pix4d_alumni_mv/32/2071_2.png) [@Pix4D\_Alumni\_MV](https://community.pix4d.com/u/Pix4D_Alumni_MV)\ **Post date:** [March 2, 2020, 4:31pm UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/4 "2020-03-02T16:31:28Z")
Hi @Lieven_Emonts-gast, The orthomosaic failed during tiling. This error is expected for outputs having a significant size and/or a complex geometry. In this case, the tiling process failed, meaning that the generated orthomosaic could not be split into smaller web maps (tiles) for several zoom levels and for this reason, the output cannot be displayed on the map view of the Cloud platform. Usually the limit is around 6-8 Go depending on the geometry complexity. The options you have in your case are either: a) If you don’t need the full resolution for the visualization, reducing the size of the orthomosaic itself: - By reducing its resolution Before uploading to the Cloud After processing step _2. Point Cloud and Mesh_ , change the Ground Sampling Distance (GSD) of the _Orthomosaic._ 1. On the Menu bar, click **Process \> Processing Options…** 2. Select the processing step **3. DSM, Orthomosaic and Index**. 3. Select the tab **DSM and Orthomosaic**. 4. In the section _Resolution_ , increase the resolution to multiples of the GSD or to a customized resolution [cm/pixel]. - Open the .tiff file in QGIS. - On the top bar, navigate to Raster \> Conversion \> Translate (Convert Format). - Select input layer and output file location and name. - Check “outsize” and select the percentage to which you want to reduce the Ortho resolution. - Click OK - Then replace the file on the Cloud with the smaller one. - By reducing the project area After step _2. Point Cloud and Mesh_ is processed, draw a _Processing Area_ . This will reduce the project area for which the results of step _3. DSM, Orthomosaic, and Index_ are generated, but the quality of the outputs is not affected. b) Tiling the orthomosaic in different files with third-party software and uploading them as results in different projects. ---
**Author:** ![Lieven\_Emonts-gast](https://avatars.discourse-cdn.com/v4/letter/l/47e85d/32.png) [@Lieven\_Emonts-gast](https://community.pix4d.com/u/Lieven_Emonts-gast)\ **Post date:** [March 4, 2020, 5:38pm UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/5 "2020-03-04T17:38:04Z")
Hey @Pix4D_Alumni_MV, thanks for your help. I reduced the resolution of the mosaic to 2xGSD. This makes a big difference in file size, but some areas are now black" Any advice? It seems like this only happened to the area of one of the 3 projects i merged into this project. It looks as if the overlap between flight lines is now too little, however this was the same as the rest of the project and was no problem with 1xGSD. ![GSD](https://global.discourse-cdn.com/pix4d/original/2X/b/b466cdc86f7fa1874b61e162605fda2527228b69.jpeg) ---
**Author:** ![Pix4D\_Alumni\_MV](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pix4d_alumni_mv/32/2071_2.png) [@Pix4D\_Alumni\_MV](https://community.pix4d.com/u/Pix4D_Alumni_MV)\ **Post date:** [March 5, 2020, 1:54pm UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/6 "2020-03-05T13:54:21Z")
Hi @Lieven_Emonts-gast, Seems that the difference of GSD between the two projects has an impact when decreasing the global GSD. Without testing and the project it is hard to say. I would rather recommend you to reduce the size using QGIS…^^ Best ---
**Author:** ![Lieven\_Emonts-gast](https://avatars.discourse-cdn.com/v4/letter/l/47e85d/32.png) [@Lieven\_Emonts-gast](https://community.pix4d.com/u/Lieven_Emonts-gast)\ **Post date:** [March 6, 2020, 9:30am UTC](https://community.pix4d.com/t/orthomosaic-and-dsm-size-limit/11764/7 "2020-03-06T09:30:41Z")
Hey @Pix4D_Alumni_MV I tried the QGis software. My original orthomosaic was 3,5GB When using QGis and selecting 50% outsize the file becomes 8GB… When using QGis and selecting 25% outsize the file becomes 2GB So my resolution is 4 times less at this time, which is not how i want to share the orthomosaic. Seems odd that the file becomes 2 times the size when selecting 50% resolution…