Electronic signatures and digital certificates allow to sign png document with eSign application. Note, the signed png document keeps signatures as supported document elements, such as text, labels, stickers, images, hidden metadata information and digital certificates that verifies document content. The png document signed with digital certificates could be verified for any changes of its content. If there were some changes made to signed document then verification process will detect it and certificates will be not valid. To add various electronic signatures, you need to select one or more png documents, then in application select one from the existing signature templates like Text Stamps, Images, Handwritten signatures, Barcode, QR Code or digital certificate to sign, drag the signatures across the document pages. The documents are stored in a secure storage. You can upload it from any platform, mobile or another device, on any Windows, MacOs, Linux or Android platform. We support any browser and provide generation of any digital signatures, metadata signatures or certificates. No registration is required. All files are processed on our servers so no additional plug-ins or software installations.
Protect document with digital signatures.
Support any document format as PDF, DOCX, XLSX, PPTX, RTF, ODS, OTS, ODP, JPEG, PNG, GIF, and many more!
Sign PDF documents with digital certificates and various electronic signatures.
Sign Microsoft and Open Office documents from browsers.
Generate Barcode, generate QR code and add them to your documents.
PNGPortable Network Graphic
PNG, Portable Network Graphics, refers to a type of raster image file format that use loseless compression. This file format was created as a replacement of Graphics Interchange Format (GIF) and has no copyright limitations. However, PNG file format does not support animations. PNG file format supports loseless image compression that makes it popular among its users. With the passage of time, PNG has evolved as one of the mostly used image file format.
{"STEP1_PUTS":"1. Put signatures:","STEP2_SIGN":"2. Sign and download:","STEP3_EXIT":"Exit:","Sign_Bar_Name":"Barcodes","Sign_Bar_Title":"New Barcode","Sign_Dig_Name":"Digital Certificates (.pfx)","Sign_Dig_Title":"New digital signature","Sign_Hand_Name":"Handwritten signatures","Sign_Hand_Title":"","Sign_Image_Name":"Image signatures","Sign_Image_Title":"Add image signature","Sign_Qr_Name":"QR-codes","Sign_Qr_Title":"New QR-code","Sign_Stamp_Name":"Stamps","Sign_Stamp_Title":"","Sign_Text_Name":"Text signatures","Sign_Text_Title":"","ListPanel_Apply":"Apply","ListPanel_NoEntries":"There is no entries yet","Sign_Text_Default":"Signed","UI_Text_Click_Or_Drop":"Click [split] to open [file] [split] or drop it here","UI_Text_Certificate":"a certificate","UI_Text_Image":"an image","UI_Text_File":"a file","URL_SignDocument":"https://products.groupdocs.app/signature/sign/","URL_FileUpload":"https://products.groupdocs.app/api/signature/upload","URL_SignWithGeneratedImage":"https://products.groupdocs.app/api/signature/signwithgeneratedimage","URL_Total":"/signature/total","URL_Host":"http://products.groupdocs.app","MSG_FailedToUploadFile":"Failed to upload file. Reason:","MSG_SelectFileUpload":"Please select a file to upload.","MSG_SelectFileToSign":"Please select one file to sign.","MSG_UnsupportedType":"You are trying to upload file(s) of unsupported type: ","MSG_DropSelectFileToSign":"Drop or select your file to sign","MSG_Processing":"PROCESSING","AllowedExtensions":"\"doc\",\"docx\",\"docm\",\"dot\",\"dotm\",\"dotx\",\"odt\",\"ott\",\"rtf\",\"ppt\",\"pps\",\"pptx\",\"ppsx\",\"odp\",\"otp\",\"potx\",\"potm\",\"pptm\",\"ppsm\",\"pdf\",\"xlsx\",\"ods\",\"ots\",\"xls\",\"xlsb\",\"xlsm\",\"xltm\",\"xltx\",\"csv\",\"bmp\",\"gif\",\"jpg\",\"jpeg\",\"png\",\"svg\",\"tif\",\"tiff\",\"webp\",\"wmf\",\"cdr\",\"cmx\"","ImageExtensions":".bmp,.gif,.jpg,.jpeg,.png,.webp","CertificateExtensions":".pfx","Sign_Bar_Panel_Tooltip":"Add Barcode","Sign_Dig_Panel_Tooltip":"Protect with digital certificate","Sign_Hand_Panel_Tooltip":"Add handwritten signature","Sign_Image_Panel_Tooltip":"Add Image signature","Sign_Qr_Panel_Tooltip":"Add QR-code","Sign_Stamp_Panel_Tooltip":"Add Stamp","Sign_Text_Panel_Tooltip":"Add Text signature","Sign_Add_New_Tooltip":"Create new signature","Sign_Drag_Tooltip":"Drag me to the page or click","Tutorial_Tooltip":"Tutorial","STEP2_SIGN_Tooltip":"Sign document and download result","STEP3_EXIT_Tooltip":"Close editor","Sign_Hand_Color":"Color","Sign_Hand_Width":"Width"}
Easy Online {0}Barcode Maker for {1}documents
Free Barcode generator | Generate {0}Barcode and add to {1}document for free!
Barcode generator, generate {0}barcode for {1}, {0}barcode, on-line {0}barcode generator for {1}
Generator {0}Barcode for PNG images
Generate {0}barcode! {0} it's easy!
Generate {0}Barcode for Png Document
Learn more about {0}
{0} Details
Discover {0}Barcode generator free online app!
Generate {0}Barcode and add to <a onclick='gaEventBarGenSelectDocType("pdf");' target='_blank' rel='noindex nofollow' href='/signature/generate/barcode/pdf'>PDF</a>, <a onclick='gaEventBarGenSelectDocType("docx");' target='_blank' rel='noindex nofollow' href='/signature/generate/barcode/docx'>DOCX</a>, <a onclick='gaEventBarGenSelectDocType("xlsx");' target='_blank' rel='noindex nofollow' href='/signature/generate/barcode/xlsx'>XLSX</a>, <a onclick='gaEventBarGenSelectDocType("pptx");' target='_blank' rel='noindex nofollow' href='/signature/generate/barcode/pptx'>PPTX</a>, <a onclick='gaEventBarGenSelectDocType("png");' target='_blank' rel='noindex nofollow' href='/signature/generate/barcode/png'>PNG</a> files for free. There are many more supported document formats.
How to generate {0}Barcode and add into Png Document?
Select {0}Barcode type from the list on the left side.
Enter {0}Barcode text in a central pane.
Check {0}Barcode appearance in a preview pane on the right or press 'Generate' button.
Press the 'Download' button to save the generated {0}Barcode image.
Press the 'Add to Document' button to apply {0}Barcode to your Png document.
FAQ (Frequently Asked Question)
❓ How to generate barcode?
Barcode generation requires the selection of the Barcode Type and Text to decode into the barcode representation. Once these values are selected the barcode image will be generated automatically with the ability to download or put the generated barcode to the png document.
❓ How is barcode generated?
The barcode is generated by software based on the barcode type and text. The barcode type defines the algorithm to encode barcode text into image representation and decode this image back to text. The barcode type also specifies the limited character set that is supported this barcode.
❓ How to scan barcode?
The barcode can be scanned and decoded to text using GroupDocs.Signature software. When an uploaded png document or image contains a barcode the software detects its type and returns text.