PulpoPDF

Merge PDF

Join several documents into one.

Join several documents into one. Free, unlimited, no sign-up and no watermark.

As you drop each file we check whether it carries digital signatures. If it does, we warn you before touching anything: processing a signed PDF invalidates the signature, and we'd rather you made that call.

Frequently asked questions

Are digital signatures lost when merging PDFs?

Yes — merging always invalidates signatures: a signature covers the exact bytes of the file, and merging builds a new one. The difference is that here we warn you beforehand and offer a ZIP that keeps the originals intact.

Is it free and unlimited?

Yes. No sign-up, no watermark, and no limit on the number of files or their size.

PDF tools

Organise

Split PDF — Break it into several files by ranges.
Extract pages — Pull out only the pages you need.
Delete pages — Remove the pages you don't want.
Organise pages — Reorder them by dragging.
Rotate PDF — Straighten out sideways pages.

Convert

PDF to JPG — Every page as an image.
JPG to PDF — Your images in a single document.
Word to PDF — Convert a .docx keeping headings, tables and formatting.
PDF to Markdown — Clean text with headings, lists and tables. Without leaving the browser.
PDF to Word — Rescue the text and images. It won't be fully editable, and we say so.
Excel to PDF — Stop columns from being cut off: fits the width to the page.
PowerPoint to PDF — Keeps the 16:9 shape and can include your speaker notes.
PDF to PowerPoint — One page, one slide. And the text really is editable.
TXT to PDF — Turn a plain text file into a formatted PDF.
Camera scanner — Photograph documents with your camera and turn them into a PDF.

Optimise

Compress PDF — Smaller file by recompressing the images inside.
Crop margins — Adjust the visible area of the page.
Repair PDF — Rebuild files that won't open.
Flatten PDF — Lock forms and layers so they can no longer be edited.

Edit

Watermark — Background text on every page.
Page numbers — Automatic numbering, with formatting.
Sign PDF — Draw your signature and place it.
Redact PDF — Genuinely remove sensitive data, not just a black box on top.
Fill in forms — Complete the fields of a PDF form.
Add image to PDF — Put a logo, a stamp or a photo inside a PDF that already exists.
Annotate PDF — Draw, highlight and write on the pages.
Edit text — Change the text already in the document — works with Arial, Times and Courier.

Verify and protect

Signature inspector — See whether a PDF is really signed or only looks like it.
Sign with a certificate — A real digital signature with your certificate — without wiping the signatures the document already has.
Compare PDFs — What changed between two versions.
PDF reader — Reading, sepia and night modes. And it tells you if the PDF is signed.
OCR — text in scans — Recognise the text in a scanned document. Slow, but yours.
Protect with a password — Encrypt the document with AES so it asks for a password to open.
Remove password — Strips the password off a PDF you can already open.