Legal Information

Cookie Policy

This policy explains what cookies are, why OncePDF uses them, and your rights to control them. We believe in total transparency when it comes to your data.

Effective Date: August 04, 2026
Version: 1.0
Lumewise Technology Pvt. Ltd.

Cookies at a Glance

Essential Cookies

Required for core website functionality, security, and basic operations. Cannot be disabled.

Preference Cookies

Remember your settings, language choices, and formatting preferences for future visits.

Analytics Cookies

Help us understand how users interact with our site so we can improve performance anonymously.

Advertising Cookies

Used by our advertising partners to show you relevant ads and measure ad performance.

Privacy First
User Control
Transparent Policies
Secure Browsing
Regularly Updated

1. What Are Cookies?

Cookies are small text files that are placed on your computer, smartphone, or other device when you visit a website. They are widely used by online service providers to make websites work, or to work more efficiently, as well as to provide reporting information.

Cookies set by the website owner (in this case, OncePDF) are called "first-party cookies." Cookies set by parties other than the website owner are called "third-party cookies." Third-party cookies enable third-party features or functionality to be provided on or through the website (like interactive content, analytics, and advertising).

2. Types of Cookies We Use

We categorize the cookies on our platform into four main types:

Essential Cookies

Strictly necessary to provide you with services available through our website and to use some of its features.

Can be disabled: No

Preference Cookies

Allow the website to remember choices you make in the past, like what language you prefer or your settings.

Can be disabled: Yes

Analytics Cookies

Collect information that is used in aggregate form to help us understand how our website is being used.

Can be disabled: Yes

Advertising Cookies

Used to make advertising messages more relevant to you and to prevent the same ad from reappearing.

Can be disabled: Yes

3. How We Use Cookies

OncePDF utilizes cookies specifically to achieve the following goals:

Improve Performance

Load pages faster based on your device.

Maintain Sessions

Keep you securely logged into your account.

Improve Security

Detect and prevent malicious activity.

Better Experience

Remember your tool formatting preferences.

4. Third-Party Services

In some special cases, we also use cookies provided by trusted third parties. The following section details which third-party cookies you might encounter through this site:

  • Google Analytics: One of the most widespread and trusted analytics solutions on the web for helping us to understand how you use the site and ways that we can improve your experience. These cookies may track things such as how long you spend on the site and the pages that you visit.
  • Google AdSense: We use Google AdSense to serve advertising. Google uses a DoubleClick cookie to serve more relevant ads across the web and limit the number of times that a given ad is shown to you.
  • Cloudflare: Used to maximize network resources, manage traffic, and protect our sites from malicious traffic.

5. Managing Cookies

You have the right to decide whether to accept or reject cookies. You can set or amend your web browser controls to accept or refuse cookies. If you choose to reject cookies, you may still use our website, though your access to some functionality and areas of our website may be restricted.

How to disable cookies in your browser:

  • Google Chrome: Click the menu icon (3 dots) > Settings > Privacy and security > Cookies and other site data.
  • Mozilla Firefox: Click the menu icon (3 lines) > Settings > Privacy & Security > Cookies and Site Data.
  • Apple Safari: Click Safari > Preferences > Privacy > Block all cookies.
  • Microsoft Edge: Click the menu icon (3 dots) > Settings > Cookies and site permissions > Manage and delete cookies.

For information on other browsers, please visit your browser developer's website or check their help documentation.

7. Privacy & Your Rights

Our Privacy-First Philosophy

At OncePDF, we process your documents directly in your browser using modern WebAssembly. We do not use cookies to track the contents of your documents or associate your PDF files with your personal identity.

Your Rights

  • Manage your preferences
  • Delete stored cookies
  • Withdraw consent anytime
  • Request data deletion

Children's Privacy

We do not knowingly use cookies to collect personal information from children under the age of 13. If you believe we have inadvertently collected such data, contact us.

8. Contact Information

If you have any questions about our use of cookies or other technologies, please email us at:

Lumewise Technology Pvt. Ltd.

1st Floor, Bixcel Building, 62
Sengunthapuram Main Rd
Karur, Tamil Nadu 639002, India.

Privacy Team Email

legal@oncepdf.com

Or visit our Contact Page.

Cookie FAQ

What are cookies?

Cookies are small text files placed on your device by a website to remember your preferences and improve your browsing experience.

Why does OncePDF use cookies?

We use cookies to maintain your login session securely, remember your tool formatting preferences, and analyze site performance to improve our platform.

Can I disable cookies?

Yes, you can manage or disable cookies entirely through your browser settings.

Will the website still work without cookies?

Our core PDF tools operate entirely in your browser and will still work! However, you may not be able to log in to premium accounts, and your settings will not be saved for your next visit.

Do cookies collect personal information?

Generally no. Our cookies do not collect sensitive personal data or the contents of the PDFs you process. They primarily assign a random ID to your browser.

How long are cookies stored?

Session cookies are deleted immediately when you close your browser. Persistent cookies remain for a set period (usually between a few days to a year) depending on their purpose.

Can I change my cookie preferences?

Yes, you can update your preferences by clearing your browser cookies, which will prompt our cookie banner to appear again on your next visit.

Does OncePDF use advertising cookies?

Yes, as a free service, we utilize Google AdSense which may place third-party advertising cookies on your device to show you relevant ads.

How do I contact the privacy team?

You can email us directly at legal@oncepdf.com for any privacy or cookie-related inquiries.

When was this policy last updated?

The Effective Date is prominently displayed at the top of this page. We update this policy whenever we make significant changes to our cookie usage.

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