> For the complete documentation index, see [llms.txt](https://docs.emsigner.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.emsigner.com/apis/api-reference/mobile-app/merge-documents.md).

# Merge Documents

## POST /api/Public/MobMergeDocuments

> Merge documents

```json
{"openapi":"3.0.1","info":{"title":"emSigner Core API","version":"v1"},"tags":[{"name":"MobMergeDocuments"}],"servers":[{"url":"https://demoapi-core.emsigner.com","description":"Demo / Sandbox"},{"url":"{baseUrl}","description":"Custom environment","variables":{"baseUrl":{"default":"https://demoapi-core.emsigner.com","description":"Base URL of your emSigner environment (e.g. production or on-prem API host)"}}}],"security":[{"Bearer":[]}],"components":{"securitySchemes":{"Bearer":{"type":"http","description":"JWT access token from POST /auth/token. Paste the token without the \"Bearer \" prefix.","scheme":"bearer","bearerFormat":"JWT"}},"schemas":{"emSignerCoreAPI.Shared.DTOs.MobMergeDocumentsRequestDto":{"required":["documentId","mergeDocumentList"],"type":"object","properties":{"documentId":{"maximum":2147483647,"minimum":1,"type":"integer","format":"int32"},"mergeDocumentList":{"minItems":1,"type":"array","items":{"$ref":"#/components/schemas/emSignerCoreAPI.Shared.DTOs.MergeDocumentDetailsDto"}}},"additionalProperties":false},"emSignerCoreAPI.Shared.DTOs.MergeDocumentDetailsDto":{"required":["documentName","fileData"],"type":"object","properties":{"documentName":{"maxLength":300,"minLength":0,"type":"string"},"fileData":{"minLength":1,"type":"string"}},"additionalProperties":false},"emSignerCoreAPI.ViewModels.ReturnObject`1[[System.String, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]":{"type":"object","properties":{"isSuccess":{"type":"boolean"},"messages":{"type":"array","items":{"type":"string"},"nullable":true},"errorCode":{"type":"integer","format":"int32"},"errorKey":{"type":"string","nullable":true},"response":{"type":"string","nullable":true}},"additionalProperties":false}}},"paths":{"/api/Public/MobMergeDocuments":{"post":{"tags":["MobMergeDocuments"],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/emSignerCoreAPI.Shared.DTOs.MobMergeDocumentsRequestDto"}}}},"responses":{"200":{"description":"OK","content":{"application/json":{"schema":{"$ref":"#/components/schemas/emSignerCoreAPI.ViewModels.ReturnObject`1[[System.String, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]"}}}},"400":{"description":"Bad Request","content":{"application/json":{"schema":{"$ref":"#/components/schemas/emSignerCoreAPI.ViewModels.ReturnObject`1[[System.String, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]"}}}},"401":{"description":"Unauthorized","content":{"application/json":{"schema":{"$ref":"#/components/schemas/emSignerCoreAPI.ViewModels.ReturnObject`1[[System.String, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]"}}}},"404":{"description":"Not Found","content":{"application/json":{"schema":{"$ref":"#/components/schemas/emSignerCoreAPI.ViewModels.ReturnObject`1[[System.String, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]"}}}},"500":{"description":"Internal Server Error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/emSignerCoreAPI.ViewModels.ReturnObject`1[[System.String, System.Private.CoreLib, Version=9.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]"}}}}},"summary":"Merge documents","operationId":"post_MobMergeDocuments"}}}}
```