How to merge multiple PDFs into one?

Use our "Merge PDFs" tool: select your files, drag to reorder, and click Process. Everything is done in your browser — no files are uploaded to any server.

How to compress a PDF without losing quality?

Our compression tool automatically reduces PDF file size while maintaining visual quality. Simply upload your file and download the result.

How to unlock a password-protected PDF?

Upload the protected PDF to our "Unlock PDF" tool. If the file only has copy/print restrictions, removal is automatic. For open passwords, you'll need to enter the password.

Is it safe to use online PDF tools?

Yes! At Unlocked PDF, all files are processed locally in your browser using WebAssembly. No files are ever sent to our servers.

Can I convert images to PDF for free?

Yes, our "Image to PDF" tool converts JPG, PNG, and WebP into multi-page PDF documents, completely free.

How much can a PDF be reduced?

Depends on content. Image-heavy PDFs can be reduced up to 80%. Text-only documents see 10-30% reduction.

Does compression affect text quality?

No. Compression targets internal images and redundant data. Text remains sharp.

Can I compress scanned PDFs?

Yes. Scanned PDFs benefit greatly from compression with 50-80% reductions.

How many PDFs can I compress per day?

Unlimited. Use as many times as you need — 100% free.

Yes. All processing happens locally in your browser. No files are uploaded.

Comprimir Ficheiro PDF

Diminua o tamanho dos seus PDFs sem sacrificar a qualidade visual. Compressão inteligente que otimiza imagens e remove dados desnecessários.

Sobre Esta Ferramenta

Drastically reduce the size of your PDF files without losing visual quality. Our smart compression optimizes internal images, removes redundant data, and restructures the document. Ideal for email attachments and uploads with size limits.

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