Help

Support

Quick fixes for the things that go wrong, and a way to reach us when they don't.

Common issues

  • "File is larger than 10 MB"

    The per-file cap is 10 MB. Compress the PDF, split it, or use a desktop tool for larger files.

  • "We couldn't open that PDF. Check the password and try again."

    The password is wrong, or the file isn't actually password-protected. Double-check the password (caps lock, spaces, leading/trailing characters).

  • "Cannot delete N page because the PDF only contains M pages"

    Your page expression references a page number that doesn't exist in the file. Open the file and check how many pages it has.

  • "Hex color must be a valid 6 or 8-character hex string"

    The watermark color must look like #FF0000 or #FF0000FF (the last two characters are the optional alpha, 00 to FF).

  • Upload hangs or errors out

    Check your internet connection, refresh the page, and try again. If it keeps happening, the service might be temporarily overloaded.

  • Watermark doesn't look the way I expected

    The watermark is rotated about the text's centre. If it appears off-page on a small page, try a smaller font size, a smaller rotation, or a placement closer to the page's middle.

Report a bug

Email us at [email protected]. To make it easy to fix, please include:

  • Which tool you were using (Unlock, Lock, Merge, Delete pages, Watermark).
  • Your browser and operating system (for example, "Chrome 127 on macOS 14").
  • What you expected to happen and what actually happened.
  • If it's a parsing/validation issue, the exact text of the field that failed.
  • If you can reproduce it, a non-sensitive sample PDF that triggers the same behaviour.

Open pre-filled bug report

Still stuck?

Email [email protected] and we'll get back to you. We answer most messages within a couple of days.

Don't include your real, sensitive PDF in the first message. We'll ask for it only if we genuinely need it to debug, and we'll tell you how to send it safely.