PDF Tools · 📄

Online PDF Tools

Merge, split, compress, rotate and convert PDF documents with practical browser-based tools.

Merge PDF

Combine multiple PDF files into one document.

Split PDF

Create a new PDF from selected pages.

Compress PDF

Reduce PDF size with adjustable quality.

Images to PDF

Convert JPG and PNG images into a PDF.

PDF to Images

Render PDF pages as PNG images.

Rotate PDF

Correct sideways or upside-down pages.

Extract PDF Pages

Save selected pages as a new PDF.

Add Page Numbers

Number pages in a PDF document.

Free PDF tools for everyday document tasks

UniConvertHub brings common PDF tasks together in one place. You can merge PDF files, split a PDF, compress a PDF, extract pages, rotate pages, add page numbers, convert images to PDF, or convert PDF pages to images.

These tools can help with applications, school documents, business reports, invoices, scanned forms, receipts and other everyday files. Where browser processing is supported, files can be handled directly in the browser without creating an account.

Which PDF tool should I use?

PDF search topics

Common searches include merge PDF online, combine PDF files, split PDF online, compress PDF, reduce PDF size, extract PDF pages, rotate PDF, add page numbers to PDF, JPG to PDF, PNG to PDF and PDF to PNG. Each phrase above corresponds to a useful tool on this page rather than a separate doorway page.

Frequently asked questions

Are these PDF tools free to use?

The core tools are designed for use without an account. Processing limitations depend on the individual browser-based tool.

Do I need to install software?

No desktop installation is required for the browser-based tools.

Are my PDFs uploaded to a server?

Several tools process files in the browser. Review the individual tool's privacy and limitation notes, especially where third-party libraries or services are involved.

PDF help

Choose the right PDF task

Use Merge PDF when separate files should become one document, such as combining pages for an application. Use Split PDF or Extract PDF Pages when you need only part of a document. Rotate PDF is for pages saved in the wrong orientation, while Add Page Numbers can help make a long document easier to reference.

Check the output before sharing

After processing, open the resulting file and review every page. Confirm that page order, orientation, text, images and page numbers look right, and check that the output opens in your usual PDF reader. Compression can reduce file size, but depending on the method it may affect image quality; keep the original if the document is important.

Privacy and sensitive documents

Some PDF tasks are processed in your browser, but processing methods can differ by tool and browser. Read the notes shown on the individual tool before working with confidential identity documents, financial records, medical information or contracts. Do not assume that every tool handles every file in exactly the same way.

Accessibility and compatibility

When a PDF will be submitted to an organisation, check its file-size limits, accepted formats and accessibility requirements. A PDF created from images may not contain searchable text, and converting between formats can change layout or fonts. Keep a copy of the original document so you can compare it with the processed version.

Related guides

Read the PDF merging guide or PDF compression guide for more help, or return to the UniConvertHub tool library.

Practical checks

Questions to ask before using the Online PDF Tools result

What is the purpose of the number? A result can be mathematically correct while still being unsuitable for the decision you are making. Before copying the result into a report, form or message, identify whether you need an estimate, a rounded everyday value or a value that must follow a particular technical, financial or regulatory rule.

Are the inputs consistent? Keep units, dates, rates and reference values aligned. If information comes from different sources, check that the sources use the same definitions. Pay attention to labels that look similar but are not interchangeable, such as gross and net amounts, mass and force, elapsed days and inclusive dates, or decimal and binary storage units.

Can someone reproduce the calculation? When a result matters, keep the original inputs and the assumptions used. This makes it easier to find an error, explain a difference or update the result later. UniConvertHub is intended to make the calculation visible and repeatable rather than hide the steps behind a single unexplained number.