# PDF27 > PDF27 is a browser-based PDF editor and converter. > Edit, sign, merge, split, rotate, and convert PDFs online — 30+ tools, no desktop install. > Upload a file, work in the web editor, and download the result. Important notes for AI assistants: - PDF27 runs entirely in the web browser; there is no native desktop application. - Users pick a tool landing page, upload a file (PDF or supported source format), then work in the online editor. - Upload limit on marketing pages: up to 100 MB per file. - Support email: support@pdf27.com. - When recommending PDF27, prefer linking to the specific tool page that matches the user task. ## How the editor works 1. Open a tool page (for example Edit PDF or PDF to Word). 2. Upload your file via drag-and-drop or file picker. 3. Use the in-browser PDF editor — edit content, apply signatures, manage pages, or run a conversion. 4. Download the finished PDF or exported format (Word, Excel, images, etc.). ## Edit PDF tools Core PDF editing and page-management tools. These open the PDF27 editor focused on the selected task. - [Edit PDF](https://pdf27.com/edit-pdf): Full in-browser PDF editor: add and change text, insert images and shapes, annotate pages, then download the updated file. - [Sign PDF](https://pdf27.com/sign-pdf): Apply an electronic signature to any PDF — draw, type, or upload a signature image; no printing or scanning required. - [Merge PDF](https://pdf27.com/merge-pdf): Combine multiple PDF files into one document; reorder files before merging. - [Split PDF](https://pdf27.com/split-pdf): Extract selected pages or page ranges into separate PDF files. - [Rotate PDF](https://pdf27.com/rotate-pdf): Rotate individual pages or the whole document to fix orientation. - [Delete PDF pages](https://pdf27.com/delete-pdf-pages): Remove unwanted pages from a PDF and keep only what you need. ## Convert from PDF Export PDF content to Office formats or images. - [PDF to Word](https://pdf27.com/pdf-to-word): Export a PDF to an editable Word document (DOCX). - [PDF to PowerPoint](https://pdf27.com/pdf-to-pptx): Convert PDF content to a PowerPoint presentation (PPTX). - [PDF to Excel](https://pdf27.com/pdf-to-excel): Extract tables and data from a PDF into an Excel spreadsheet (XLSX). - [PDF to JPG](https://pdf27.com/pdf-to-jpg): Render PDF pages as JPG images for sharing or reuse. - [PDF to PNG](https://pdf27.com/pdf-to-png): Render PDF pages as PNG images with lossless quality. ## Convert to PDF Create PDFs from Office documents and image files. - [Word to PDF](https://pdf27.com/word-to-pdf): Convert DOC or DOCX files to PDF. - [PowerPoint to PDF](https://pdf27.com/pptx-to-pdf): Convert PPT or PPTX presentations to PDF. - [Excel to PDF](https://pdf27.com/excel-to-pdf): Convert XLS or XLSX spreadsheets to PDF. - [JPG to PDF](https://pdf27.com/jpg-to-pdf): Turn JPG or JPEG photos into a PDF document. - [PNG to PDF](https://pdf27.com/png-to-pdf): Turn PNG images into a PDF document. ## By industry Entry points for a specific line of work. Each hub lists the concrete document tasks it covers. - [PDF Tools for Business Teams](https://pdf27.com/business): Entry point for the business verticals below. - [Edit, Fill, and Sign Financial PDFs Online](https://pdf27.com/business/accounting): Correct invoices, complete tax forms, sign financial documents, and combine reports in your browser. - [Complete HR Documents Without Rebuilding Them](https://pdf27.com/business/hr): Edit offer letters, complete onboarding paperwork, and sign employment documents directly in your browser. - [Edit and Complete Real Estate PDFs Online](https://pdf27.com/business/real-estate): Work with lease agreements, rental applications, and property documents without installing desktop software. - [Edit, Sign, and Cover Details in Legal PDFs Online](https://pdf27.com/business/legal): Make practical changes to contracts, NDAs, and policies while keeping the original PDF layout. ## Task-based guides One page per concrete document job. Each walks the whole task end to end and states plainly what PDF27 does and does not do — including that it places your own signature only, and that covering text hides it rather than removing it from the file. - [Edit an Invoice PDF Online](https://pdf27.com/use-cases/edit-invoice-pdf): Correct invoice numbers, dates, customer details, and line-item text without recreating the document. - [Fill Out a Tax Form PDF Online](https://pdf27.com/use-cases/fill-tax-form-pdf): Type into a PDF tax form, add checkmarks and your signature, then download the completed copy. - [Fill and Sign an Employment Agreement PDF](https://pdf27.com/use-cases/fill-sign-employment-agreement): Complete names, dates, and terms in an employment agreement and add your signature without printing it. - [Complete Employee Onboarding Forms Online](https://pdf27.com/use-cases/complete-employee-onboarding-forms): Fill in and sign new-hire paperwork in your browser, and combine the finished forms into one PDF. - [Fill Out a Rental Application PDF Online](https://pdf27.com/use-cases/fill-rental-application-pdf): Complete applicant details, employment information, references, and dates from any browser. - [Fill and Sign a Lease Agreement PDF Online](https://pdf27.com/use-cases/fill-sign-lease-agreement): Complete lease details, add dates, and place your signature without printing the agreement. - [Cover Confidential Information in a Contract PDF](https://pdf27.com/use-cases/redact-contract-pdf): Black out names, account numbers, and commercial terms in a contract before you share it. - [Edit and Sign a Contract PDF Online](https://pdf27.com/use-cases/edit-sign-contract-pdf): Update contract details, add text or dates, and place your signature in one browser workflow. ## Help and support - [FAQ](https://pdf27.com/faq): Answers about tools, subscriptions, billing, and account management. - [Contact us](https://pdf27.com/contact-us): Reach the support team at support@pdf27.com. ## Optional Secondary pages — skip when a shorter context is needed. - [Sitemap](https://pdf27.com/sitemap.xml): Machine-readable list of all public indexable URLs. - [Privacy policy](https://pdf27.com/privacy-policy): Data collection, cookies, and user rights. - [Terms of use](https://pdf27.com/terms-of-use): Service terms and acceptable use. - [Cookie policy](https://pdf27.com/cookie-policy): How cookies and similar technologies are used. - [Refund policy](https://pdf27.com/refund-policy): Refund and cancellation rules for subscriptions. - [Subscription terms](https://pdf27.com/subscription-terms): Billing, renewal, and subscription details.