Skip to content
Merge & Organize

Flip PDF Horizontally or Vertically

Mirror the pages of a PDF, for iron-on transfers, screen printing, a light table or a scan that came out back to front. You can flip vertically or both ways too. Your file stays on your device.

Flip PDF

Settings appear once you add a PDF.

Flip
Advanced 1
Pages

Ctrl + Enter runs it ·

Bytes sent anywhere: 0 B

Keyboard shortcuts

Ctrl K
Search all tools
Ctrl V
Paste files to add them
Ctrl Enter
Run the tool
?
Show this list
Esc
Close this list or the search
  • 100% private Your PDFs never leave this device. Everything runs in your browser.
  • No limits No file-size cap, no watermark, no sign-up and no daily quota. Free.
  • Batch ready Add as many PDFs as you like; each one is handled and saved in one go.

How to flip a PDF horizontally

  1. Add your PDFs: Drop in the PDF.

  2. Check the settings: Pick horizontal (a mirror image), vertical, or both.

  3. Save the result: Save it. The mirroring is written into the file, so it prints flipped wherever you open it.

Why it doesn’t upload

If you’re mirroring a PDF, it’s usually your own artwork on its way to a printer. I’d rather it never left your computer, so the flip happens in your browser, not on a server.

Check it in your browser’s Network tab

Worth knowing

  • Mirrored text reads backwards, which is what you want for a transfer. Underneath, it’s still real text.
  • Links move with the page, so they still sit over the right words.
  • Flipping both ways is the same as turning the page 180°. If that’s all you need, Rotate does it without the mirroring.

Under the hood

What happens to your file

Flipping mirrors each page with a transformation matrix, the same mechanism a PDF uses to place anything on a page. Text stays text and link areas are mirrored with the content, so a mirrored page still clicks where it shows.

Runs on pdf-lib

Reference: ISO 32000-2 (PDF 2.0)

Why mirror a PDF?

Iron-on transfers, screen-printing films, light-box tracing and rear-projection screens all need the artwork printed in reverse, so it reads the right way once it’s transferred or seen from the other side. You could hunt for a mirror setting in your printer driver, but every printer hides it somewhere different. Flipping the PDF first is simpler, and it works on any printer.

The page is mirrored as it is. Underneath, it’s still real text and vector shapes, and all of it happens in your browser.

Common reasons to flip a PDF horizontally or vertically

  • T-shirt iron-on transfers

    Mirror the design so the words read correctly once it’s ironed onto the shirt.

  • Screen printing and stencils

    Print films and stencils in reverse, the way the process needs them.

  • Scans that came out back to front

    Fix a page that was scanned through the wrong side of a clear sheet.

  • Tracing and light boxes

    Mirror a pattern so you can trace it from the back.

  • Rear-projection displays

    Reverse slides for a screen people watch from behind.

Tips for flipping PDF pages

  1. If only one side of a double-sided print needs mirroring, flip just the odd or just the even pages.
  2. Flipping both ways is the same as turning the page 180°. If you don’t want a mirror image, use Rotate PDF.
  3. Mirrored text looks backwards on screen. For a transfer, that’s exactly right.
  4. Links move with the page, so they stay over the right words.
  5. Read your transfer paper’s instructions first. Some brands are made for printing without mirroring.

Questions

How do I mirror a PDF image for printing, like an iron-on transfer?

Choose Horizontally, press Flip PDF and print the result on transfer paper. Once it’s ironed on, the design reads the right way round on the fabric.

What’s the difference between flipping and rotating?

Rotating turns the page around. Flipping mirrors it. A page flipped horizontally reads right to left, like text held up to a mirror.

Can I flip only some pages?

Yes. Under Advanced you can flip just the odd or just the even pages, which is useful for some double-sided printing tricks.

How do I fix a PDF that is upside down?

Turn it 180° with Rotate PDF, don’t flip it. A vertical flip mirrors the page top to bottom, so the text would end up the right way up but backwards. Rotating keeps it readable.

Is the flip saved in the file?

Yes. A viewer’s rotate button usually only changes how the page looks on your screen. Here the mirrored pages are written into a new PDF, so it opens and prints flipped on any device.

More merge & organize tools

All merge & organize tools