Troubleshooting and FAQ
Questions
Are my files uploaded?
No. The image, PDF, QR, developer and calculator tools all work inside your browser, and your files never leave your device. The only tool that contacts the server is the HTTP Status Code Checker, which sends the URLs you type (not files) so it can check them.
Is it free? Do I need an account?
It is free, with no sign-up, no watermarks on results, and it works on phones.
Does it work offline?
You need a connection to load a tool page. The processing itself then happens in your browser.
Can I convert HEIC, TIFF or GIF images?
No. The image tools accept JPG, PNG and WEBP.
Can I edit the text of a PDF, or merge PDFs?
No. The PDF tools compress PDFs, build a PDF from images, and turn PDF pages into JPGs.
Who makes Dhiva Tools, and how do I get in touch?
Dhiva Tools is made by Dhiva Labs. Use the About and Contact links in the site header.
Troubleshooting
The file is too big
Cause: Images are limited to 20 MB and PDFs to 50 MB, because everything is processed in your browser's memory.
Fix: For an image, try a desktop tool first, or resize it to a smaller pixel size. For a PDF, split it with another tool and compress the parts.
"This PDF has … pages — the limit is 300 pages."
Cause: The PDF Compressor and PDF to JPG handle up to 300 pages.
Fix: Split the PDF into smaller parts with another tool first.
"This PDF is password-protected."
Cause: The PDF is locked with a password.
Fix: Open it in a PDF reader, remove the password, save a copy, and use that.
The result is not smaller
Cause: The file was already well compressed.
Fix: For images, lower the quality, choose WEBP, or use Reduce Image Size with a target. For PDFs, try Maximum compression. If nothing helps, keep the original.
Text in my compressed PDF cannot be selected
Cause: The PDF Compressor turns pages into images. This is how it makes PDFs smaller.
Fix: Keep the original PDF when you need searchable or selectable text. The compressor suits scans and image-heavy documents.
"Your browser can't create WEBP images."
Cause: Your browser cannot write WEBP files.
Fix: Use a recent version of Chrome, Edge or Firefox.
The QR code does not scan
Cause: Low contrast colours, a code printed too small, or a typo in the content.
Fix: Use a dark Foreground on a light Background, a larger Size, or High error correction, and check the fields.
"Couldn't reach the checker."
Cause: The HTTP Status Code Checker could not contact the Dhiva Tools server, often because the internet connection dropped.
Fix: Check your connection and try again. Remember that localhost and private network addresses cannot be checked.