InOneShot - PDF Mail Merge

InOneShot is a simple PDF mail merge tool that turns one PDF template and one Excel/CSV file into dozens or hundreds of personalized documents — generated in a single shot.

READY-TO-USE TEMPLATES INCLUDED

No file ready yet? Get started immediately with pre-built templates for certificates of attendance, invoices, quotes, contracts, notices and more. Each template includes a sample PDF and a pre-configured Excel spreadsheet, so you can test InOneShot and generate documents in seconds.

HOW IT WORKS

Open your own PDF or choose a ready-to-use template
Open your Excel or CSV file containing your data
Tap anywhere to place your fields: Excel columns, dynamic dates, handwritten signatures or dynamic QR codes
Generate one personalized PDF per row, bundled into a ZIP, or create a single merged PDF

SAVE & REUSE YOUR TEMPLATES

Position your fields once and save your template with one tap. Next time, simply reload it and all fields are restored automatically. Perfect for recurring monthly or weekly batches.

WHO IT'S FOR

• Associations and training organizations — certificates, diplomas and attendance documents
• Freelancers and tradespeople — personalized invoices, quotes and receipts
• HR, schools and administrative teams — letters, notices and forms
• Anyone tired of filling out the same PDF document by hand, over and over

YOUR DATA STAYS ON YOUR DEVICE

InOneShot processes your files locally. Your PDF and Excel/CSV data are never uploaded to a server or cloud. No analytics, no tracking SDKs. Works fully offline, without an internet connection.

HONEST PRICING

• Free: generate up to 5 PDFs per batch
• Pro: one-time payment, unlimited generation for life — no subscription

KEY FEATURES

• Ready-to-use templates with sample PDFs and datasets
• Save and reload reusable PDF placement templates
• Intuitive tap-to-place field editor
• Excel/CSV data fields
• Dynamic dates with multiple formats
• Transparent handwritten signatures
• Dynamic QR codes generated from your data
• Batch generation: ZIP archive or single merged PDF
• English and French
• Light and dark themes
• 100% offline — no internet connection required

InOneShot — PDF mail merge without the complexity. One template. One spreadsheet. One shot.

Recent changes:
• InOneShot now speaks 15 languages! (English, French, Spanish, Portuguese, German, Italian, Hindi, Chinese, Japanese, Korean, Arabic, Russian, Indonesian, Turkish, Vietnamese).
• Instant language switcher available anytime from the top menu and right from onboarding.
• Full Right-to-Left (RTL) layout support for Arabic.
• Performance improvements and enhanced app stability.