📄 PDF: 19 free online tools
Convert, merge, compress, sign and edit your PDFs.
All the PDF tools you need in one place
Merge supporting documents for an application, compress a PDF that is too big for an online form, convert a PDF to Word to edit it, turn photos into a PDF, sign a contract, number the pages of a thesis, password-protect a document or extract its text: Sahlify's 19 PDF tools handle everyday situations at school and at work.
They rely on pdf-lib and PDF.js, two well-established libraries, and run in your browser. Your contracts, statements and ID documents never pass through a server, unlike most online services.
Tip: the right order
For a complete application file, first convert your images to PDF, then merge the files in the right order, number the pages and compress everything last: you get a single lightweight file that is easy to send.
Frequently asked questions
Are my PDFs stored anywhere?
No. Files are processed locally and disappear as soon as you close the page.
Can I edit the text of a PDF?
Yes: the “Edit PDF” tool lets you add text, shapes and images; to rewrite the whole content, convert the PDF to Word.
Does compression reduce quality?
The “recommended” level keeps text perfectly readable; the “strong” level further reduces embedded images.