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Cookie Policy

1. About This Cookie Policy

This Cookie Policy explains how cookies and other similar technologies are used when you access or use our Service.

It explains:

  • what cookies and tracking technologies are;
  • why these technologies are used;
  • how you can manage or control them;
  • which cookies may be used on our website.

If you have any questions about this Cookie Policy, you can contact us at: support@pdfleader.com

2. Cookies

2.1. What Cookies Are

Cookies are small text files placed on your device when you visit our website. Your device may include a computer, smartphone, or another electronic device.

Cookies may store different types of information, such as:

  • your language preference;
  • the browser you use;
  • the device you use to view the website.

Cookies placed by us are called first-party cookies.

We also use third-party cookies. These are cookies placed from a domain other than our website domain and are used for our advertising and marketing efforts.

2.2. Session Cookies

Session cookies expire each time you close your browser and do not remain on your device afterwards.

These cookies allow our website to link your actions during a particular browser session.

2.3. Persistent Cookies

Persistent cookies remain on your device for a period of time.

They expire either on a set expiration date or when you manually delete them from your cache.

These cookies are stored on your device between browser sessions and allow your preferences and actions across our website to be remembered.

3. Similar Technologies

In addition to cookies, we may use other similar technologies.

3.1. Web Beacons

A web beacon is a small transparent image that contains a unique identifier. It may also be known as a “pixel tag,” “web bug,” or “GIF.”

A web beacon may be embedded into a website or an email.

When your browser reads the website code, it communicates with our server to display the image. Through this process, we may receive information such as:

  • technical specifications of your device;
  • operating system information;
  • device and browser settings.

Web beacons may also allow us to:

  • track your activities during a session;
  • recognize when an email was opened;
  • identify the IP address and device from which an email was opened;
  • improve our email communication.

3.2. Software Development Kits

Software development kits, or SDKs, are third-party software development kits that may be installed in our Service.

SDKs help us understand how you interact with our Service and may collect certain information about:

  • the device you use to access the Service;
  • the network you use to access the Service.

3.3. Local Shared Objects

Local shared objects, commonly called “Flash cookies,” are pieces of data that websites using Adobe Flash may store on a user’s computer to support Flash functionality.

We may use Adobe Flash to display:

  • graphics;
  • interactive animations;
  • other enhanced functionality.

Local shared objects can track parameters similar to cookies. They may also provide information about your use of the specific feature supported by the cookie.

For example, if the technology supports video display, we may receive information about:

  • how much of the video was watched;
  • when viewing stopped.

3.4. HTML5 Local Storage

HTML5 is the fifth version of the HTML language and includes functionality that allows information to be stored locally within browser data files.

HTML5 local storage works in a way similar to cookies, but it differs because:

  • it can hold larger amounts of information;
  • it does not rely on an exchange of data with the website’s server.

3.5. Fingerprinting

Fingerprinting is a technique that combines a set of information elements to uniquely identify a particular device.

These elements may include:

  • device configuration data;
  • CSS information;
  • JavaScript objects;
  • installed fonts;
  • browser plugins;
  • use of APIs;
  • HTTP header information;
  • clock information.

3.6. Device Identifiers

Device identifiers are identifiers made up of numbers and letters that are unique to a specific device.

These identifiers include:

  • Apple’s ID for Advertisers (IDFA);
  • Google’s Android Advertising ID (AAID).

Device identifiers are stored on the device and are used to recognize you and your devices across different apps and devices for marketing and advertising purposes.

You can reset your device identifier or opt out of personalized advertising in your device settings.

4. Managing Cookies and Similar Technologies

You may be able to manage cookies and similar technologies through your browser, device settings, analytics opt-out tools, advertising opt-out resources, and third-party privacy controls.

4.1. Browser and Device Settings

Most browsers allow you to refuse cookies and delete cookies.

The methods for doing this vary depending on:

  • the browser;
  • the browser version.

You can obtain up-to-date information about blocking and deleting cookies through the following resources:

Detailed instructions on controlling cookies through browser settings can also be found here: https://www.aboutcookies.org/how-to-control-cookies/

Please note that blocking all cookies may negatively affect the usability of many websites.

If you block cookies, you will not be able to use all features on our website.

4.2. Analytics Opt-Out

You may use the following resources to opt out of certain analytics tools:

To reset your device identifier or opt-out of personalized advertising, follow Google instructions or Apple instructions.

4.3. Interest-Based Advertising Opt-Out

The third-party advertisers, ad agencies, and vendors we work with may be members of:

  • the Network Advertising Initiative;
  • the Digital Advertising Alliance Self-Regulatory Program for Online Behavioral Advertising;
  • the European Digital Advertising Alliance.

To opt out of interest-based advertising from participating companies, you may use the following resources:

4.4. Third-Party Cookies

Some cookies on our website are placed by third-party services.

These third parties have their own privacy policies governing how they use information collected through their cookies.

We encourage you to review the privacy policies of these third parties:

5. Cookies We Use

This section provides more information about the individual cookies we use and the purposes for which they are used.

5.1. Strictly Necessary Cookies

Strictly necessary cookies are required for the website to function and cannot be switched off in our systems.

They are usually set only when you take an action that amounts to a request for services, such as:

  • setting your privacy preferences;
  • logging in;
  • filling in forms.

You can set your browser to block or alert you about these cookies, but some parts of the site will not work.

The following strictly necessary cookies may be used on our website:

Cookie NameProviderDescription
pdfleader_atPDF LeaderGoogle
pdfleader_at_exp_datePDF LeaderFunctional / Security
_csrfTrustpilotUsed as a CSRF protection token
OptanonConsentOneTrustUsed to store user consent preferences
OptanonAlertBoxClosedOneTrustUsed to store the cookie banner dismissed timestamp
SOCSGoogleUsed to store Google user consent choices related to cookies

5.2. Analytical or Performance Cookies

Analytical or performance cookies allow us to:

  • recognize and count the number of visitors;
  • identify which pages are the most and least popular;
  • understand how visitors move around the website.

This helps us improve how the website works, including by helping users find what they are looking for more easily.

If you do not allow these cookies, we will not know when you have visited our site and will not be able to monitor its performance.

The following analytical or performance cookies may be used on our website:

Cookie NameProviderDescription
_gaGoogleUsed as a Google Analytics client ID
_ga_11HBWMC274GoogleUsed as a GA session/measurement cookie
_clckMicrosoftUsed as a Microsoft Clarity visitor ID
_clskMicrosoftUsed as a Microsoft Clarity session ID
AMP_d12254ac49AmplitudeUsed as an Amplitude analytics cookie
TP.uuidTrustpilotUsed as a Trustpilot unique visitor ID
ajs_anonymous_idSegmentUsed as a Segment anonymous user ID
_hjDonePollsHotjarUsed for Hotjar completed polls
_hjSessionUser_391767HotjarUsed as a Hotjar user cookie with a persistent ID
_cs_idContentsquareUsed as a Contentsquare persistent visitor ID to recognize returning users for session replays and heatmaps
__eventn_idEventnUsed as a unique visitor identifier by the Eventn tracking system
fs_uidFullStoryUsed as a FullStory user identifier for session replay analytics
_ga_L97TR1N1TGGoogleUsed as a Google Analytics session tracking cookie
__hstcHubSpotUsed as a tracking cookie to track visitors
CLIDMicrosoft ClarityUsed as a Microsoft Clarity user ID for session analytics and heatmaps
ajs_user_idSegmentUsed as a Segment identified user ID

5.3. Functional Cookies

Functional cookies are used to recognize you when you return to our website.

They allow us to:

  • personalize our content for you;
  • greet you by name;
  • remember your preferences, such as language or region.

These cookies may be set by us or by third-party providers whose services we have added to our pages.

If you do not allow these cookies, some or all of these services may not function properly.

The following functional cookies may be used on our website:

Cookie NameProviderDescription
AECGoogleMaintains Google account/session integrity
APISIDGoogleGoogle authentication cookie
HSIDGoogleGoogle security cookie
SAPISIDGoogleGoogle authentication cookie (secure)
SIDGoogleGoogle session ID
SSIDGoogleGoogle secure session ID
SIDCCGoogleGoogle security cookie
__Secure-BUCKETGoogleGoogle A/B testing bucket
__Secure-STRPGoogleGoogle secure storage cookie
cio_u_idCustomer.ioUsed as a Customer.io user identifier for marketing automation
_zitokCustomer.io / WebsiteUsed as a site-specific cookie for session or marketing identification
g_stateGoogleStores state information related to Google authentication or embedded Google services
__Secure-1PAPISIDGoogleSecure Google auth cookie
__Secure-1PSIDGoogleSecure Google session cookie
__Secure-1PSIDTSGoogleSecure Google timestamp cookie
__Secure-3PAPISIDGoogleSecure Google auth cookie for cross-site purposes
__Secure-3PSIDGoogleSecure Google session cookie for cross-site purposes
__Secure-3PSIDTSGoogleSecure Google timestamp cookie for cross-site purposes

5.4. Targeting Cookies

Targeting cookies record:

  • your visit to our website;
  • the pages you have visited;
  • the links you have followed.

We use this information to make our website and the advertising displayed on it more relevant to your interests.

These cookies may be set through our website by our advertising partners. Those companies may use them to build a profile of your interests and show you relevant adverts on other sites.

The following targeting cookies may be used on our website:

Cookie NameProviderDescription
NIDGoogleUsed as a Google Ads personalization ID
DVGoogleUsed for ad serving and personalization
_gcl_auGoogleUsed as a Google Ads measurement cookie
MUIDMicrosoftUsed as a Microsoft/Bing user ID
MRMicrosoftUsed for Microsoft/Bing tracking
_uetsidMicrosoftUsed as a Microsoft Bing Ads session ID for tracking ad sessions
_uetvidMicrosoftUsed as a persistent visitor ID for Microsoft Bing Ads tracking
_rdt_uuidRedditUsed as a Reddit advertising cookie for conversion tracking
_fbpMeta (Facebook)Used as a Facebook Pixel cookie for ad tracking and measurement
__hstcHubSpotUsed as a tracking cookie to track visitors
6. Updates to This Cookie Policy

We may update this Cookie Policy when necessary. Any changes will be indicated by updating the “Last updated” date below.

Last updated: 17 June 2026