diff --git a/db/dump/fixtures.before.sql b/db/dump/fixtures.before.sql
index c5e66babf6..b83d190c91 100644
--- a/db/dump/fixtures.before.sql
+++ b/db/dump/fixtures.before.sql
@@ -3793,6 +3793,7 @@ INSERT INTO vn.workCenter (id, name, payrollCenterFk, counter, warehouseFk, stre
 
 UPDATE vn.locker SET workerFk = 1110 WHERE id = 147;
 
+ALTER TABLE vn.docuwareTablet ADD fileCabinet varchar(100) NULL;
 ALTER TABLE vn.docuware ADD modelFk VARCHAR(45) DEFAULT NULL NULL;
 ALTER TABLE vn.docuware ADD CONSTRAINT docuware_module_FK FOREIGN KEY (modelFk) REFERENCES salix.module(code);
 --  Auto-generated SQL script #202405201318
@@ -3811,3 +3812,6 @@ UPDATE vn.docuware
 UPDATE vn.docuware
 	SET modelFk='worker'
 	WHERE id=3;
+--  Auto-generated SQL script #202405201951
+INSERT INTO salix.ACL (model,property,accessType,permission,principalType,principalId)
+	VALUES ('Worker','isPDASigned','READ','ALLOW','ROLE','hr');
diff --git a/modules/worker/back/methods/worker/docuwareUpload.js b/modules/worker/back/methods/worker/docuwareUpload.js
new file mode 100644
index 0000000000..530b29ecc0
--- /dev/null
+++ b/modules/worker/back/methods/worker/docuwareUpload.js
@@ -0,0 +1,117 @@
+const axios = require('axios');
+const {models} = require('vn-loopback/server/server');
+const UserError = require('vn-loopback/util/user-error');
+
+module.exports = Self => {
+    Self.docuwareUpload = async({ctx, tabletFk, ids: workerId, myOptions, uri, docuwareOptions, dialogId}) => {
+        if (!Array.isArray(workerId)) workerId = [workerId];
+        for (id of ticketIds) {
+            // get delivery note
+            ctx.args.id = id;
+            const deliveryNote = await models.Ticket.deliveryNotePdf(ctx, {
+                id,
+                type: 'deliveryNote'
+            }, myOptions);
+            // get ticket data
+            const ticket = await models.Ticket.findById(id, {
+                include: [{
+                    relation: 'client',
+                    scope: {
+                        fields: ['id', 'name', 'fi']
+                    }
+                }]
+            }, myOptions);
+
+            // upload file
+            const templateJson = {
+                'Fields': [
+                    {
+                        'FieldName': 'N__ALBAR_N',
+                        'ItemElementName': 'string',
+                        'Item': id,
+                    },
+                    {
+                        'FieldName': 'CIF_PROVEEDOR',
+                        'ItemElementName': 'string',
+                        'Item': ticket.client().fi,
+                    },
+                    {
+                        'FieldName': 'CODIGO_PROVEEDOR',
+                        'ItemElementName': 'string',
+                        'Item': ticket.client().id,
+                    },
+                    {
+                        'FieldName': 'NOMBRE_PROVEEDOR',
+                        'ItemElementName': 'string',
+                        'Item': ticket.client().name + ' - ' + id,
+                    },
+                    {
+                        'FieldName': 'FECHA_FACTURA',
+                        'ItemElementName': 'date',
+                        'Item': ticket.shipped,
+                    },
+                    {
+                        'FieldName': 'TOTAL_FACTURA',
+                        'ItemElementName': 'Decimal',
+                        'Item': ticket.totalWithVat,
+                    },
+                    {
+                        'FieldName': 'ESTADO',
+                        'ItemElementName': 'string',
+                        'Item': 'Pendiente procesar',
+                    },
+                    {
+                        'FieldName': 'FIRMA_',
+                        'ItemElementName': 'string',
+                        'Item': 'Si',
+                    },
+                    {
+                        'FieldName': 'FILTRO_TABLET',
+                        'ItemElementName': 'string',
+                        'Item': tabletFk,
+                    }
+                ]
+            };
+
+            if (process.env.NODE_ENV != 'production')
+                throw new UserError('Action not allowed on the test environment');
+
+            // delete old
+            const docuwareFile = await models.Docuware.checkFile(id, fileCabinet, false);
+            if (docuwareFile) {
+                const deleteJson = {
+                    'Field': [{'FieldName': 'ESTADO', 'Item': 'Pendiente eliminar', 'ItemElementName': 'String'}]
+                };
+                const deleteUri = `${uri}/${docuwareFile.id}/Fields`;
+                await axios.put(deleteUri, deleteJson, docuwareOptions.headers);
+            }
+
+            const uploadUri = `${uri}?StoreDialogId=${dialogId}`;
+            const FormData = require('form-data');
+            const data = new FormData();
+
+            data.append('document', JSON.stringify(templateJson), 'schema.json');
+            data.append('file[]', deliveryNote[0], 'file.pdf');
+            const uploadOptions = {
+                headers: {
+                    'Content-Type': 'multipart/form-data',
+                    'X-File-ModifiedDate': Date.vnNew(),
+                    'Cookie': docuwareOptions.headers.headers.Cookie,
+                    ...data.getHeaders()
+                },
+            };
+
+            try {
+                await axios.post(uploadUri, data, uploadOptions);
+            } catch (err) {
+                const $t = ctx.req.__;
+                const message = $t('Failed to upload delivery note', {id});
+                if (uploaded.length)
+                    await models.TicketTracking.setDelivered(ctx, uploaded, myOptions);
+                throw new UserError(message);
+            }
+            uploaded.push(id);
+        }
+    };
+};
+
diff --git a/modules/worker/back/methods/worker/signedPDA.js b/modules/worker/back/methods/worker/signedPDA.js
new file mode 100644
index 0000000000..5080b84d5c
--- /dev/null
+++ b/modules/worker/back/methods/worker/signedPDA.js
@@ -0,0 +1,54 @@
+const UserError = require('vn-loopback/util/user-error');
+
+module.exports = Self => {
+    Self.remoteMethodCtx('isPDASigned', {
+        description: 'Deallocate the PDA of the worker',
+        accepts: [{
+            arg: 'ctx',
+            type: 'Object',
+            http: {source: 'context'}
+        }, {
+            arg: 'id',
+            type: 'number',
+            required: true,
+            description: 'The worker id',
+            http: {source: 'path'}
+        }, {
+            arg: 'pda',
+            type: 'number',
+            required: true,
+            description: 'The pda id'
+        }],
+        returns: {
+            type: ['object'],
+            root: true
+        },
+        http: {
+            path: '/:id/:pda/isPDASigned',
+            verb: 'GET'
+        }
+    });
+
+    Self.isPDASigned = async(ctx, options) => {
+        const models = Self.app.models;
+        const args = ctx.args;
+        let tx;
+        const myOptions = {};
+
+        if (typeof options == 'object')
+            Object.assign(myOptions, options);
+
+        if (!myOptions.transaction) {
+            tx = await Self.beginTransaction({});
+            myOptions.transaction = tx;
+        }
+
+        try {
+            const pda = await models.DeviceProduction.findById(args.pda, myOptions);
+            if (pda.stateFk != 'idle') throw new UserError(`The PDA state is not idle`);
+        } catch (e) {
+            if (tx) await tx.rollback();
+            throw e;
+        }
+    };
+};
diff --git a/modules/worker/back/models/device-production-user.js b/modules/worker/back/models/device-production-user.js
index 81af484d30..f228f6d55a 100644
--- a/modules/worker/back/models/device-production-user.js
+++ b/modules/worker/back/models/device-production-user.js
@@ -1,4 +1,5 @@
 const UserError = require('vn-loopback/util/user-error');
+
 module.exports = Self => {
     Self.rewriteDbError(function(err) {
         if (err.code === 'ER_DUP_ENTRY')
diff --git a/modules/worker/back/models/worker.js b/modules/worker/back/models/worker.js
index 0b0e043f2e..6f9c1e2393 100644
--- a/modules/worker/back/models/worker.js
+++ b/modules/worker/back/models/worker.js
@@ -8,6 +8,7 @@ module.exports = Self => {
     require('../methods/worker/createAbsence')(Self);
     require('../methods/worker/deleteAbsence')(Self);
     require('../methods/worker/updateAbsence')(Self);
+    require('../methods/worker/docuwareUpload')(Self);
     require('../methods/worker/active')(Self);
     require('../methods/worker/activeWithRole')(Self);
     require('../methods/worker/activeWithInheritedRole')(Self);
@@ -17,6 +18,7 @@ module.exports = Self => {
     require('../methods/worker/new')(Self);
     require('../methods/worker/deallocatePDA')(Self);
     require('../methods/worker/allocatePDA')(Self);
+    require('../methods/worker/signedPDA')(Self);
     require('../methods/worker/search')(Self);
     require('../methods/worker/isAuthorized')(Self);
     require('../methods/worker/setPassword')(Self);