Merge PDF
Combine multiple PDF files in the order you need.
OnlineOffice is an online multitool. Some tools are public, some require an account, and some unlock only on paid plans.
Fast utilities without login. Good for one-off usage, with no saved history.
Combine multiple PDF files in the order you need.
Split a PDF by pages or page ranges.
Reduce PDF file size for email or upload.
Export PDF pages as images.
Convert CSV files into JSON output.
Count words, characters, and paragraphs in text.
Switch text between lowercase, uppercase, and sentence styles.
Compare two text versions and highlight changes.
Format and validate JSON data.
These require sign-in because they work with saved user data, companies, or history.
Review recent processing jobs and saved outputs.
Manage reusable document templates.
Keep in-progress spreadsheet files in your account.
Store image exports and outputs for later use.
Save frequently used text blocks and data outputs.
Export your saved data and settings.
Store suppliers, customers, and billing addresses.
Draft invoices saved in your workspace.
Manage account and company billing details.
Track recent account and workspace activity.
Production workflows, server-side processing, and more expensive features unlock on PRO, Enterprise, or add-ons.
Recognize text from scans and create searchable PDFs.
Prepare PDFs for signature workflows and signature fields.
Map fields and generate documents from structured data.
Remove sensitive information from documents before sharing.
Clean imported spreadsheets and normalize field formats.
Generate multiple invoices from spreadsheet input.
Apply company logos and branding to document outputs.
Production invoice generation with company context and numbering.
Multiple users per company with roles and audit trail.
Approval flows for documents and invoices inside a company.