Disclaimer

General information only

Everything on this site — the tools, the explanatory text on each tool page, and the guides — is provided for general information. It is not advice for your particular situation, and no professional relationship is created by using it. Where a decision matters, confirm the result with someone qualified to advise on it.

What browser processing can and cannot get right

The tools run on your own device, using your browser's own decoders and the libraries the site ships. That is good for privacy and it places real limits on accuracy:

• Rebuilding a PDF can drop interactive form fields and some annotation types, and the rasterising compression modes replace text with an image of text.
• Text recognition on a scan is a statistical guess at each character. It misreads digits, punctuation and unusual fonts, and its output must be proofread before it is used for anything that depends on the exact characters.
• Lossy image and video encoding discards detail permanently. Processing an already-compressed file again degrades it further.
• Very large files may exhaust the memory available to a browser tab. The usual symptom is an unresponsive tab rather than a clear error message.

Health and fitness calculators are not medical advice

The BMI, BMR, calorie, macro, body fat, ideal weight and pregnancy calculators are not medical advice, cannot diagnose any condition, and are not a substitute for assessment by a clinician. They do not know your medical history, your medications or anything else about you beyond the few numbers you typed in.

Each implements a published equation derived from a particular population under particular assumptions, so each carries a real error margin for any individual. Do not start, stop or change any treatment, diet or exercise programme on the basis of a number from this site, and do not use it to delay seeking medical attention. If you have a medical concern, speak to a qualified professional.

Financial calculators are not financial advice

The mortgage, loan, car, credit-card, investment and retirement calculators are not financial advice, not a recommendation, not a quote and not an offer of credit. The operator is not a licensed financial adviser and none of these figures is personalised to your circumstances.

They apply standard time-value-of-money formulas to the numbers you enter, in US dollars and following US conventions. A real lender's figure will differ, because of fees, insurance requirements, day-count conventions, rate changes and rounding rules that vary by institution and country. Use them to compare scenarios, then get the actual numbers from the institution involved.

Results are estimates from published formulas

Every calculator on the site states the formula or convention it follows on its own page, together with the limitations of that formula. Those notes are part of the result: a figure read without them can be wrong in a way that is invisible. Where two reasonable methods disagree — how a month is counted, whether a storage kilobyte is 1000 or 1024 bytes, which activity multiplier applies — the tool says which one it used.

The number of digits displayed is a formatting choice. It does not mean the input was that precise or that the estimate is that accurate.

Keep your original files

This is the single most important practical warning on the page. The tools never modify the file on your disk; they build a new file and hand it to you. But if you replace your original with the output and the output turns out to be wrong, nothing here can help you. The operator has no copy of your file and never did, so there is no recovery, no version history and no support ticket that can restore it.

Keep the original until you have opened the result and confirmed it is what you wanted.

A drawn signature is not a digital signature

The Sign PDF tool draws an image of your signature onto a page. It does not apply a certificate-based digital signature: there is no cryptographic key, no certificate authority, no timestamp authority and no tamper-evident seal. A PDF reader will not report it as a verified signature, and nothing in the file proves who added it or that the document has not been altered since.

Whether an image of a signature is legally sufficient depends on the jurisdiction and the agreement in question. Where a qualified or certificate-based electronic signature is required, use a service built for that purpose.

Covering text is not redaction

Drawing a black box over text in a PDF hides it visually and leaves it in the file. The text underneath can still be selected, copied, extracted by any PDF library, or found by search. The same applies to anything you cover with a shape, a highlight or an image using the editing tools here.

If information must genuinely be removed from a document before you share it, use software that performs true redaction by deleting the underlying content, and verify the result by searching the finished file for the text you removed. The face blur tool works on image pixels and does alter them, but it is a detection model and it can miss a face; check the output before relying on it.

External links

Links to other sites are provided for convenience. Those sites are not controlled by the operator, their content is not endorsed or verified here, and their own privacy practices apply once you follow the link.

Advertising

When advertising is enabled and you have consented to it, ads shown on the site are selected by Google, not chosen or reviewed by the operator. An advertisement appearing next to a tool is not an endorsement of the advertiser, and any dealing you have with an advertiser is between you and them. How advertising works here, and how to decline or withdraw consent, is set out in the privacy policy and the cookie policy.

Liability

The limits on liability that apply to all of the above are set out in the terms of service. If something on this site is wrong or misleading, report it through the contact form and it will be corrected or the tool will be withdrawn.