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RemixPDF

Add or replace an image in a PDF, free

Put a picture or a logo on a page, swap one that is already in the document, crop it, or pull a copy out. Nothing else on the page moves.

  • Add a logo, swap a picture, or pull one out.
  • Free
  • No signup
  • No watermark

Runs on your device

What you have to hand while you work

Why it works

Replacing happens in place.

Swap an old logo for a new one and it takes the same position and the same size — nothing reflows, nothing shifts, and the rest of the page is untouched. That is a different offer from adding a picture on top, and the two are kept apart.

Extracting takes a copy.

Pulling a photo out of a document gives you the image file and leaves the page exactly as it was. It never removes what it extracts, because those are two different things somebody might want.

Cropping happens on the page.

Click a picture already in the document and its crop box appears right on it — eight handles pull the edges in, and what you keep is what you see. No dialog, no numbers to type, no guessing what 80% means.

Two jobs sit behind this, and most tools blur them into one. The first is adding a picture to a page that did not have one: a logo on a letter, a photograph in a report, a scanned signature block. The second is swapping a picture that is already there for a different one — usually a logo that has been rebranded, on a document nobody has the original layout file for any more.

They need different behaviour. Adding means placing something, so you drag a box at the size you want and see it before you pick the picture. Replacing means taking over an existing position exactly: the new image inherits the old one’s place and dimensions, so the page after the swap is identical apart from the picture itself, and a PNG with transparency stays transparent. A tool that treats replacing as delete-then-add gets this wrong, and you spend ten minutes nudging a logo back to where it already was.

Extracting is kept separate from removing for the same reason. Pulling a photograph out of a document to use elsewhere is a copy operation and leaves the page untouched; taking a picture off a page is a deletion. Merging them means somebody eventually loses an image they only wanted a copy of. Extracting and cropping work on every decodable image, not just photos: a JPEG comes out as its original bytes, and a Flate, indexed, or transparency-carrying image decodes to a PNG with its alpha intact. Something the decoder can’t read is said so, never skipped silently.

Cropping happens on the page itself: the crop box sits on the picture with eight handles — pull them to the part you want to keep, and the cropped-away pixels leave the file. Cropping in a dialog with percentage fields is a guess followed by a check, and usually two or three attempts.

One thing worth pointing elsewhere for. If what you want is a logo or a word on every page, this is the wrong tool — placing the same thing nineteen times is what the watermark tool exists to avoid.

Everything runs in this browser, nothing is uploaded, and your original file stays exactly as it is until you download a new one.

How it goes

  1. Open the PDF.

    It opens here.

  2. Choose what you are doing.

    Drag a box to add a picture, or click one already on the page to replace, crop, extract or delete it.

  3. Place or adjust it.

    When adding, drag a box at the size you want, then pick the picture — the box shows the size before you commit.

  4. Download it.

    Your original file is untouched.

What you can check for yourself

Watch the network while you work — nothing leaves this device on the default path. Then go offline and keep working — it all still runs. The two-minute checks live at how your files are handled.

Frequently asked questions

Yes — that is what replace does. The new image takes the old one's position and size, so the page layout is identical afterwards.

PNG and JPG. A PNG with transparency keeps it, which matters for a logo going over a coloured area.

No. Extracting saves a copy and leaves the page alone. Removing a picture is a separate action, so neither one surprises you.

Yes — click it and pull the crop handles to the part you want to keep. It works on more than JPEGs — a compressed or indexed image crops too, and transparency survives the crop.

It can. The tool shows the file size before and after, and the compress tool is one click away if the result matters.

Not in one action yet. For a mark that repeats on every page, the watermark tool does that — it is built for repetition.

Related tools

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Language

English and Spanish are fully translated. The rest are listed because they are coming — pick one and the page stays in English rather than showing you half a translation.