Last updated: September 4, 2026
InBPC: Bulk PDF Compressor (“InBPC”, “the App”) is an Android utility developed by Krepel Studio for compressing individual PDF files and large batches of PDF documents directly on the user's device.
Your PDF files stay on your device.
Core PDF analysis and compression are performed locally. InBPC does not upload your PDF documents to developer-operated servers for compression, storage, profiling, or advertising.
InBPC allows you to select one PDF file, multiple PDF files, or an entire folder containing PDF documents.
The App may locally access and process selected documents to:
analyze PDF structure and file size;
estimate potential compression results;
optimize PDF data and embedded resources;
compress embedded raster images where appropriate;
create compressed PDF files;
validate completed output files;
calculate original and resulting file sizes.
Krepel Studio does not receive copies of your PDF documents through the App's core compression functionality.
The contents of your documents are not used by Krepel Studio for advertising, profiling, marketing, or behavioral analytics.
PDF compression is performed directly on your Android device.
InBPC is designed to preserve the PDF document format and its usable structure rather than converting complete PDF pages into ordinary image files.
Depending on the document and selected compression level, the App may optimize PDF objects, compressed streams, embedded images, and other internal resources that contribute to file size.
Compression results depend on the original document. Files that are already highly optimized may show little or no reduction.
Any size reduction shown before compression is an estimate. The final result is calculated after processing is complete.
InBPC uses Android's system file-access mechanisms, including the Storage Access Framework (SAF) where appropriate.
You explicitly choose which files and folders the App can access, including:
individual PDF files;
multiple PDF files;
folders containing PDF documents;
folders selected for compressed output.
Access granted through Android's system picker is used only for operations initiated by you.
InBPC is designed so that unrestricted access to all files on the device is not required for normal operation.
You may choose to save compressed documents as new files or replace original files where that option is supported.
When replacing an original document, InBPC is designed to create and validate the compressed result before completing the replacement.
The App does not intentionally replace an original PDF with an incomplete processing result.
For important documents, maintaining an independent backup is recommended.
PDF analysis and compression may require temporary processing files.
Temporary data may be stored in application-controlled storage while an operation is running.
These files are used only to complete the requested operation and are intended to be removed when they are no longer required, including after completion, cancellation, or failure where technically possible.
Temporary PDF data is not intentionally uploaded to developer-operated servers.
Large PDF files and large batches may require extended processing time.
InBPC may use Android foreground processing capabilities so an active operation can continue when the App is minimized, another application is opened, or the screen is turned off.
Background processing begins only after you explicitly initiate an analysis or compression operation.
During long-running operations, InBPC may display an Android system notification showing information such as:
processing progress;
completion percentage;
processed and total file counts;
the currently processed file;
completion or failure status;
an option to cancel the active operation.
Where required by Android, the App may request permission to display notifications.
These notifications are used for processing status and App functionality, not for unsolicited promotional messaging.
The free version of InBPC may display advertisements through Google AdMob and the Google Mobile Ads SDK.
Google advertising technologies may automatically collect or process certain information, which can include:
IP address;
approximate location derived from IP address;
interactions with advertisements;
product interactions;
diagnostic information;
device identifiers;
advertising-related identifiers where available and permitted.
Google may use this information for advertising, measurement, analytics, fraud prevention, and security.
Krepel Studio does not provide the contents of your PDF documents to Google AdMob for advertising purposes.
Advertising behavior may depend on your location, consent choices, device configuration, applicable law, and Google policies.
InBPC may use Google User Messaging Platform (UMP) to manage advertising-related privacy and consent choices where required.
Depending on your location and applicable regulations, you may be offered choices relating to personalized advertising, non-personalized advertising, limited advertising, advertising storage, personalization, and advertising-related user data.
Consent interfaces and available choices may be provided and updated by Google.
Where supported, you may review or change applicable privacy choices later.
InBPC may offer a Pro upgrade through Google Play.
Purchases are processed through Google Play Billing.
Krepel Studio does not receive or store your full payment card details.
The App may process purchase-related information necessary to:
confirm a completed purchase;
unlock Pro functionality;
restore an existing purchase;
determine whether Pro access is active.
Payment processing is handled by Google according to Google's own terms and privacy practices.
InBPC may store limited application data locally on your device to preserve functionality and preferences.
This may include:
selected language;
selected theme;
onboarding completion status;
compression preferences;
output preferences;
App settings;
Pro entitlement state;
purchase-related state.
This information is used to operate the App and is not intentionally uploaded to developer-operated servers unless otherwise stated in this Privacy Policy.
Through the core functionality of InBPC, Krepel Studio does not intentionally collect:
the contents of your PDF documents;
copies of your PDF files;
your contact list;
precise GPS location;
passwords;
full payment card information;
unrelated photos, videos, or personal files.
A Krepel Studio account is not required to use the core PDF compression functionality.
InBPC may use the following Google services:
Google AdMob
Advertising and advertising-related measurement.
Google Mobile Ads SDK
Advertising delivery, diagnostics, measurement, fraud prevention, and security.
Google User Messaging Platform
Privacy and advertising consent management.
Google Play Billing
Purchase processing and Pro entitlement management.
These services may independently process information according to their own privacy policies, terms, and data-retention practices.
Krepel Studio does not sell your PDF files or their contents.
Information handled by integrated Google services may be processed for advertising, consent management, measurement, security, fraud prevention, and purchase processing.
PDF document contents used for InBPC's local compression functionality are not intentionally shared with advertising providers.
Your original and compressed PDF files remain under your control on your device.
Compressed output remains stored until you delete, move, or replace it.
Temporary processing files are intended to be removed when they are no longer required.
Local App preferences may remain until you clear the App's storage, reset applicable settings, or uninstall InBPC.
Information independently processed by Google services is subject to Google's own retention practices.
Because InBPC does not require a Krepel Studio account, there is no developer-operated user account that must be separately deleted.
You can remove locally stored App data by clearing InBPC's storage or uninstalling the App.
PDF files created or modified by InBPC remain under your control and can be deleted using Android file-management tools or another compatible application.
InBPC is designed to minimize unnecessary access to user files and data.
Core PDF processing takes place locally on the device.
Android system file-selection mechanisms are used to limit file and folder access to locations authorized by you.
Third-party Google services may communicate with external servers using their own secured infrastructure.
No software system can guarantee absolute security, but InBPC is designed to avoid unnecessary transmission or exposure of your PDF documents.
Internet connectivity may be used for third-party functionality including:
loading advertisements;
advertising consent management;
communication with Google advertising services;
Google Play Billing;
purchase verification;
related Google Play functionality.
Your PDF documents do not need to be uploaded to the Internet for compression.
Core PDF processing is performed locally.
InBPC is a general-purpose productivity utility and is not specifically designed or directed toward children.
Krepel Studio does not intentionally use PDF document contents to identify, profile, or advertise to children.
Advertising behavior may be subject to Google Play, Google AdMob, regional, and age-related requirements.
This Privacy Policy may be updated when InBPC functionality changes, Android or Google Play requirements change, third-party integrations change, or legal and regulatory requirements are updated.
The date shown at the top of this document indicates the latest revision.
Krepel Studio
InBPC: Bulk PDF Compressor
For questions about this Privacy Policy or the privacy practices of InBPC, please contact Krepel Studio using the developer contact information provided on the application's official Google Play listing.