Offline Document Redaction
Contracts and PDFs before publishing: find and permanently remove personal data on your own computer.
Learn more →Business software built around real demand
We are preparing practical tools for Windows and .NET. We will start with the ones people want most.
In short: UtilStudio, s.r.o., a software company from Slovakia, is preparing tools for Windows and .NET: offline PDF redaction, an e-invoice library for C#, bulk PDF signing and a service that automatically processes every new file in a folder (printing, signing, PDF/A, e-mail, sorting, ZIP and more). None of them is on sale yet. The ones people want most will be built first.
E-Invoice Library for .NET
A C# library to create, read and validate UBL and CII e-invoices under EN 16931 and Peppol BIS 3.0.
Learn more →Bulk PDF Signing
Hundreds of PDFs in one run: sign with a Windows or token certificate, with timestamps and a processing log.
Learn more →Automatic processing of files from a folder
A Windows program watches the folders you choose and runs the actions you set up on every new file. Each action is a separate add-on. Tell us which ones you need.
Automatic File Copy and Move
Copies or moves new files from a folder to another disk, a network share or a dated archive automatically.
Learn more →Automatic File Sorting and Renaming
Renames new files by a pattern with a date or counter and sorts them into subfolders by type, date or name.
Learn more →Run a Program on New Files
Runs a program, .bat file or PowerShell script with the file path for every new file and logs the result.
Learn more →Automatic ZIP Compression
Zips new files one by one or into a daily or monthly archive, optionally with a password.
Learn more →Hot Folder Printing
Prints PDFs and images from a folder on the printer you choose: copies, duplex, paper tray.
Learn more →Hot Folder PDF and PDF/A Converter
Converts Word, Excel, images and PDFs from a folder into PDF or archival PDF/A and checks the result.
Learn more →Automatically Email Files
Sends every new file from a folder as an e-mail attachment, with a subject and text based on the file name.
Learn more →Automatic PDF Signing from a Folder
Signs or seals every new PDF in a folder with a certificate and timestamp and saves it to an output folder.
Learn more →Received E-Invoices: XML to PDF
Validates received UBL, XRechnung and ZUGFeRD e-invoices from a folder, renders PDFs and exports the data.
Learn more →Automatic Photo Resizing
Resizes, rotates and converts new photos to JPG or WebP, strips GPS and metadata, optionally adds a watermark.
Learn more →Automatic PDF Splitting and Merging
Splits a batch scan into documents by blank page, separator sheet, QR code or page count.
Learn more →Automatic Upload to a Server or API
Sends every new file over HTTPS to a server, REST API or webhook, with authentication and response checks.
Learn more →Who is behind this
UtilStudio, s.r.o. (Predajná, Slovakia, company ID 46620613) develops and sells Windows software such as EconomSys (invoicing and inventory), EvidStore (asset, inspection and calibration tracking) and Envelomat (envelope printing).
This site measures demand for new tools before they are built. None of the products described here is on sale yet, so the pages show no prices and no Buy button. Interest decides: clicks on “I am interested” and the optional answers in the form.