---
title: "Cloud spreadsheets digital signature in Cloud"
description: "Cloud APIs & SDKs for Microsoft Excel & OpenOffice Calc digital signature. Spreadsheets digital signature by the Cells Cloud API. SDK support kinds of development languages. They include Android, C#, Go, Java, NodeJS, Perl, PHP, Python, Ruby, and swift."

---

# Cloud spreadsheets digital signature in Cloud


> Cloud APIs & SDKs for Microsoft Excel & OpenOffice Calc digital signature. Spreadsheets digital signature by the Cells Cloud API. SDK support kinds of development languages. They include Android, C#, Go, Java, NodeJS, Perl, PHP, Python, Ruby, and swift.





















































.progLangContainer {
padding-right: calc(var(--bs-gutter-x)*.1);
padding-left: calc(var(--bs-gutter-x)*.1)
}
.progLangContainer {
padding-right: calc(var(--bs-gutter-x)*.1);
padding-left: calc(var(--bs-gutter-x)*.1);
margin: 5px;
margin-right: 20px;
}
.progLangPlace .progLangContainer .progLang {
color: #fff;
text-decoration: none;
height: 75px;
width: 75px;
text-align: center;
line-height: 65px;
border-radius: 100%;
font-size: 14px;
font-weight: 700;
border: 5px solid #e5e5e5;
box-shadow: 0 15px 8px -5px #666;
display: inline-block;
direction: ltr !important;
margin-bottom: 15px
}
.progLangPlace .progLangContainer .progLang:hover {
border: 7px solid #e5e5e5;
box-shadow: none
}
.progLangPlace .progLangContainer .bigFont {
font-size: 16px !important;
}
.progLangPlace .progLangContainer .selected {
border: 0 solid #e5e5e5;
box-shadow: 0 10px 8px -5px #666, inset 0 0 0 2px #063c72, inset 0 0 0 5px #fff;
cursor: initial !important;
pointer-events: none
}
.progLang:hover {
border: 7px solid #e5e5e5;
box-shadow: none
}
.progLang {
color: #fff;
text-decoration: none;
height: 75px;
width: 75px;
text-align: center;
line-height: 65px;
border-radius: 100%;
font-size: 14px;
font-weight: 700;
border: 5px solid #e5e5e5;
box-shadow: 0 15px 8px -5px #666;
display: inline-block;
direction: ltr !important;
margin-bottom: 15px
}
.pythonColor {
background: #4a59ce !important;
}
.javaColor {
background: #a499f2 !important;
}
.csColor {
background: #42dbb0 !important;
}
.cppColor {
background: #008594 !important;
}
.phpColor {
background: #ca75d7 !important;
}
.rubyColor {
background: #09e !important;
}
.nodeColor {
background: #519e8a !important;
}
.swiftColor {
background: #a2d270 !important;
}
.goColor {
background: #48d9ee !important;
}
.perlColor {
background: #5c9fea !important;
}
.curlColor {
background: #aeae61 !important;
}
.cellsp {
display: block;
color: #fff;
margin-block-start: 1em;
margin-block-end: 1em;
margin-inline-start: 0px;
margin-inline-end: 0px;
}
.cellsh2, .cellsh1 {
margin-top: 0 !important;
margin-bottom: .5rem !important;
font-weight: 500 !important;
line-height: 1.2 !important;
}
@media (max-width: 868px){
.pf-landing-page-com .header1.minify-header .cellsrow {
display: flex!important;
align-items: center!important;
flex-flow: unset!important;
}
.data-nosnippet{
display:none;
}
.pt-5, .py-5{
padding-top:0px !important;
}
.col-lg-12 .pt-5 .cellsh2{
font-size:18px !important;
margin-top:10px !important;
margin-bottom:10px !important;
}
}
# Swift API to digital signature cloud Microsoft Excel and OpenOffice Calc spreadsheet with password and digital signature file
## Swift library to digital signature cloud Microsoft Excel and OpenOffice Calc spreadsheet with password and digital signature file
Use Cells Digital signature REST API to digital signature cloud Microsoft Excel and OpenOffice Calc spreadsheet with password and digital signature file workflows in Swift. This professional solution digital signature cloud Microsoft Excel and OpenOffice Calc spreadsheet online with passwords and digital signature file using Swift.
[C#](/cells/net/protect/Digital-signature/)
[Java](/cells/java/protect/Digital-signature/)
[Python](/cells/python/protect/Digital-signature/)
[PHP](/cells/php/protect/Digital-signature/)
[Go](/cells/go/protect/Digital-signature/)
[Node](/cells/nodejs/protect/Digital-signature/)
[Ruby](/cells/ruby/protect/Digital-signature/)
[Perl](/cells/perl/protect/Digital-signature/)
.cells_bg_white {
}
@media (max-width: 868px){
.pf-landing-page-com .productfamilypage h2{
font-size:16px !important;
text-align:center !important;
}
.section-layout .heading-border{
font-size:20px !important;
}
}
@media (min-width:1200px){
.section-layout{
width:1170px;margin:0 auto;
line-height:28px;
}
}
## Digital signature cloud Microsoft Excel and OpenOffice Calc spreadsheet with password - Swift REST API
.panelContainer {
width: 100%;
}
.cells-cloud-input-group {
display: flex;
margin: 15px auto 0;
border: 1px solid #eee;
border-radius: 10px;
background-color: #ffffff;
align-items: center;
justify-content: space-between
}
.cells-cloud-input-group-main {
flex-grow: 1;
display: inline-block;
padding: 0 4px;
color: #333;
display: inline-block;
}
.cells-cloud-input-group-prepend {
display: inline-block;
height: 52px;
border-radius: 10px 0 0 10px;
padding: 0 20px;
background-color: #e3e3e8;
color: #333;
line-height: 50px
}
.cells-cloud-input-group-method {
float: left;
padding-right: 4px;
color: #ccc;
}
.cells-cloud-input-group-main {
display: inline-block
}
.cells-cloud-input-group-append {
float: right;
}
.cells-cloud-link-button {
display: inline-block;
border: 1px solid transparent;
border-left: 1px solid #e3e3e8;
border-radius: 10px 10px 10px 10px;
padding: 0 20px;
outline: none;
box-shadow: none;
background-color: #1a89d0;
text-align: center;
vertical-align: middle;
color: #151617;
line-height: 20px;
font-size: 1rem;
font-weight: 400;
}
.cells-api-text{
text-align: center;
vertical-align: middle;
color: #151617;
line-height: 50px;
font-size: 1rem;
margin: 0 auto;
width: fit-content;
font-weight: 400;
}
.cells-cloud-action-button {
display: inline-block;
width: 100%;
border: 1px solid transparent;
border-left: 1px solid #e3e3e8;
border-radius: 10px 10px 10px 10px;
padding: 0 20px;
outline: none;
box-shadow: none;
text-align: center;
vertical-align: middle;
line-height: 50px;
font-size: 1rem;
margin: 0 auto;
width: fit-content;
font-weight: 400;
}
@media (max-width: 868px){
.cells-cloud-input-group-prepend,.cells-cloud-input-group-method{
display:none !important;
}
.cells-cloud-input-group-main{
padding:0px !important;
}
.spanclass{
float: left;
width: 70%;
overflow: hidden;
}
}
API 
POST 
https://api.aspose.cloud/v3.0/cells/{name}/digitalsignature
Try it 
Digitaling signature a cloud spreadsheet with a password and digital signature file is a complex task. Digital signature a cloud spreadsheet with password and digital signature file transitions is performed by our Swift SDK while maintaining the source spreadsheet's main structural and logical content. Our Swift library is a professional solution to digital signature cloud spreadsheets with a password and digital signature file online. This Cloud SDK gives Swift developers powerful functionality and perfect API.
### Swift code for digital signature cloud spreadsheets
console.log("")
var codeconent = document.getElementById('code-convert');
codeconent.innerHTML = "";
const originalContent = "";
let dynamicReplacement = "";
function updateDynamicContent(value) {
dynamicReplacement = value;
updateDisplay();
}
function updateDisplay() {
const modifiedContent = originalContent.replace(/Book1\.xml/g, dynamicReplacement);
console.log(modifiedContent);
codeconent.innerHTML = modifiedContent;
}
.section-list{
}
.section-list ul{
display: flex;
flex-direction: row;
justify-content: space-between;
padding: 0px;
}
.section-list li{
list-style: none;
width: 27%;
line-height: 34px;
padding: 15px;
border-radius: 5px;
padding-top: 25px;
padding-bottom: 25px;
font-weight: bold;
word-break: break-all;
display: inline-block;
border: 1px dashed;
margin-bottom: 20px;
margin-right: 0px;
}
.section-list svg{
margin-top: -20px;
margin-left:1%;
margin-right:1%;
}
.heading-border{
font-size:28px !important;
width:100% !important;
padding-bottom:20px;
}
@media (min-width: 1200px){
.howtosection{
width: 1170px !important;
margin:0 auto !important;
}
.olstyle{
width: 1170px !important;
margin:0 auto !important;
}
}
@media (max-width: 868px){
.olstyle h2{
font-size:20px !important;
}
}
.olstyle ol{
list-style-type: none;
margin-right: 0;
margin-bottom: 0;
margin-left: 16px;
padding-top: 0;
padding-right: 0;
padding-bottom: 0;
padding-left: 30px;
}
.olstyle li{
margin-right: 0 !important;
line-height: 30px;
position: relative;
margin-bottom: 10px;
font-size: 18px;
}
.olstyle li a{
font-weight:bold;
text-decoration: underline !important;
}
.olstyle li::before{
position: absolute;
left: -30px;
top: 5px;
display: block;
background: #006bb0;
width: 20px;
height: 20px;
color: #fff;
text-align: center;
line-height: 20px;
font-size: 12px;
font-weight: 700;
border-radius: 10px;
}
.olstyle li:nth-child(1):before {
content: "1"
}
.olstyle li:nth-child(2):before {
content: "2"
}
.olstyle li:nth-child(3):before {
content: "3"
}
.olstyle li:nth-child(4):before {
content: "4"
}
.olstyle li:nth-child(5):before {
content: "5"
}
.olstyle li:nth-child(6):before {
content: "6"
}
.olstyle li:nth-child(7):before {
content: "7"
}
## How to use Swift API to digital signature 
- Create an account at [Dashboard](https://dashboard.aspose.cloud/) to get free API quota & authorization details
- Initialize CellsApi with Client Id, Client Secret, Base URL & API version
- Now, Swift SDK API does not support to digital signature. 
.section-list{
}
.section-list ul{
display: flex;
flex-direction: row;
justify-content: space-between;
padding: 0px;
}
.section-list li{
list-style: none;
width: 27%;
line-height: 34px;
padding: 15px;
border-radius: 5px;
padding-top: 25px;
padding-bottom: 25px;
font-weight: bold;
word-break: break-all;
display: inline-block;
border: 1px dashed;
margin-bottom: 20px;
margin-right: 0px;
}
.section-list svg{
margin-top: -20px;
margin-left:1%;
margin-right:1%;
}
.heading-border{
font-size:28px !important;
width:100% !important;
padding-bottom:20px;
}
@media (min-width: 1200px){
.howtosection{
width: 1170px !important;
margin:0 auto !important;
}
.olstyle{
width: 1170px !important;
margin:0 auto !important;
}
}
@media (max-width: 868px){
.olstyle h2{
font-size:20px !important;
}
}
.olstyle ol{
list-style-type: none;
margin-right: 0;
margin-bottom: 0;
margin-left: 16px;
padding-top: 0;
padding-right: 0;
padding-bottom: 0;
padding-left: 30px;
}
.olstyle li{
margin-right: 0 !important;
line-height: 30px;
position: relative;
margin-bottom: 10px;
font-size: 18px;
}
.olstyle li a{
font-weight:bold;
text-decoration: underline !important;
}
.olstyle li::before{
position: absolute;
left: -30px;
top: 5px;
display: block;
background: #006bb0;
width: 20px;
height: 20px;
color: #fff;
text-align: center;
line-height: 20px;
font-size: 12px;
font-weight: 700;
border-radius: 10px;
}
.olstyle li:nth-child(1):before {
content: "1"
}
.olstyle li:nth-child(2):before {
content: "2"
}
.olstyle li:nth-child(3):before {
content: "3"
}
.olstyle li:nth-child(4):before {
content: "4"
}
.olstyle li:nth-child(5):before {
content: "5"
}
.olstyle li:nth-child(6):before {
content: "6"
}
.olstyle li:nth-child(7):before {
content: "7"
}
## System Requirements
- macOS Monterey 12.4
- Swift 4.2