How to Scan Documents on WhatsApp: Complete Guide and Key Settings

If you've ever been asked to send a document digitally and didn't have a scanner handy, now it's much easier: WhatsApp has integrated its own scanner that works with your phone's camera to create files ready to share . This new feature adds to the app's list of useful tools and allows you to digitize documents without leaving the chat, with filters and cropping included to ensure a clear and legible result. Below, we'll tell you how to get the most out of it and what alternatives you have if the feature isn't yet available on your phone.

The feature is called "Scan Document" and is located within the attachments menu you already use to send photos or files. On iPhones, it arrived with WhatsApp version 24.25.89 and is being rolled out gradually, so it may take a little while to appear for all users. Some sources indicate that it's already available on Android as well, although not on all devices; therefore, we've also included a simple method for Android using Google's Files app. In any case, the trick is the same: point your camera at the document, and the app will identify the edges, adjust the perspective, and generate a document ready to send with just a couple of taps.

How a mobile document scanner works

A scanner is simply a combination of a camera and software capable of detecting the paper's outline, correcting perspective , and increasing contrast so the text is perfectly legible. On a mobile phone, this task is handled by the camera itself, along with algorithms that transform the photo into something more like a scan than a simple image. That's why, when you frame a receipt or contract, you'll see how the app draws a frame and corrects the tilt, resulting in a cleaner file than a regular photo.

WhatsApp now integrates this process into the document sending workflow, eliminating the need to open a separate app. With this system, you can digitize everything from purchase receipts and payment slips to notes and reports, all without leaving the chat. Post-processing allows you to crop borders, rotate pages, and apply color filters to improve the readability of printed text.

The goal is to let you manage your paperwork on the go: scan, review the result, save it, and share it in the same place where you're having the conversation. This way, invoices, delivery notes, or contracts are quickly transformed into easy-to-read, lightweight files.

Availability, required version and what it allows you to do

The document scanning feature is available on iPhone starting with WhatsApp version 24.25.89 . It's currently being rolled out gradually through the App Store, so if you don't see it yet, you should update your app and wait for it to appear on your account. Several sources indicate that it wasn't officially announced for Android initially, although some users have seen it on their phones in recent weeks. If you don't have it enabled, you'll find instructions below on how to replicate it using Google Files.

WhatsApp's built-in scanner goes beyond simply taking a photo: it includes automatic cropping, orientation correction, and filters designed for documents. Specifically, you can switch between color, grayscale, and black and white, as well as enable or disable the flash when scanning in low-light environments. These adjustments are applied before saving and ensure that the text comes out sharp even if the paper is slightly wrinkled or the background is uneven.

Another important point is post-processing. Before sending, you can open the preview and adjust the borders, rotate any crooked pages, or delete any you don't want to include. On iPhone, once finished, a PDF document is generated with all the scanned pages in a row, ready to be shared immediately via WhatsApp. In early versions, some media outlets weren't sure if it always exported to PDF, but in practice, the iOS workflow produces this file for easier sharing.

Regarding limits, remember that the maximum size of any document you send via WhatsApp is 2 GB . This is a very generous margin for scanned documents, which are usually much smaller, especially if you use the black and white or grayscale filter. If you need to keep the file outside of WhatsApp, you can always save it in the iPhone's Files app to later share it via email, upload it to the cloud, print it, or even password-protect it using the PDF lock option.

Step by step on iPhone: Scan from a chat

First, make sure your app is up to date. You can check the version in WhatsApp Settings and, if it's older than the required version, install the latest one. Once the feature is active, you can access it where you always attach files: the " Add" button within a chat or group . There you'll see the "Documents" section with three common options, including the one we're looking for: "Scan Document."

The process is very straightforward and doesn't require complicated techniques. It's best to place the paper flat on a surface with good contrast and lighting, so the edges are clearly visible. In the camera view, you'll see a frame that detects the outline; when the framing is correct, the capture can be automatic , or you can manually tap the shutter button if you prefer to work in manual mode. Either way, the result will require adjusting the perspective and contrast to ensure the text is legible.

• Open WhatsApp on your iPhone and enter the chat where you want to send the scanned file. The goal is to have the conversation handy so you can share the document as soon as you're done.
• Tap the Add button and select documents. Three options will appear: select from files, select a photo or video, and scan a document.
• Choose Scan Document. A camera focused on the paper will open, with specific features for edge detection and content alignment.
• Focus on the document. In automatic mode, the app captures when the frame is correct; in manual mode, you tap to shoot. If you make a mistake, you can repeat the shot without any problem.
• When you're done, save. WhatsApp will group the pages and show you a PDF with a text box and a send button.

While scanning, you'll find shortcuts at the top to switch between automatic and manual capture, activate the flash, and change the color mode. These controls help you handle real-world situations, such as an office with cool fluorescent lighting or a crumpled receipt that looks worse in color than in black and white. Typically, the grayscale option significantly improves the readability of printed text.

After each scan, a thumbnail appears in the corner; tapping it opens the editor where you can crop edges , rotate pages that are crooked, or delete unwanted pages. You can also rescan from scratch if you want to recreate the entire document. Upon confirmation, WhatsApp creates a PDF with all pages in order and allows you to add text before sending.

Once shared, the file remains available in that conversation for you to access whenever you want. You can forward it to other chats, open and share it with other apps, or save a local copy to Files . If you work with sensitive documents, you should take advantage of the system's options to protect them, such as locking the PDF from the iPhone's file manager.

Scanner controls and settings: filters, flash, and capture

WhatsApp's scanner includes several simple levers that make a big difference in the final result. Beyond automatic cropping, you can change how the image is captured, how the scene is lit, and how color is processed. These adjustments are designed to make the document legible and clean without having to edit it in another app, saving you time and effort.

The capture mode has two options: automatic and manual . Automatic mode detects the paper edge and triggers the scan when there's good alignment, ideal for quickly scanning multiple sheets in a row. Manual mode gives you complete control, allowing you to press the shutter button whenever you want, and is useful for complex documents, such as very glossy paper or transparent plastics that reflect light.

In lighting, the flash switch is helpful in dark environments or those with strong shadows. It should be used sparingly to avoid glare on glossy paper , but on thermal receipts, a touch of flash can improve readability. The trick is to maintain a sufficient distance and an angle that minimizes reflections.

In color mode, you can switch between three options: color, grayscale, and black and white . Color mode is recommended when there are stamps or other elements with significant color, while black and white offers the most contrasting text and results in smaller file sizes. Grayscale is a great middle ground when you want to preserve details without significantly increasing the PDF size.

Finally, in the document preview, you can reorder pages , precisely crop edges, and rotate any that have been printed upside down. These adjustments are quick, applied before the PDF is generated, and ensure the recipient receives a clean, presentable, and professional-looking file.

Android Today: Where is the feature and an alternative with Files by Google?

On Android, the situation has changed over time . During its initial launch, WhatsApp didn't integrate the scanner into the app for all users of this system, and several media outlets indicated that it wasn't officially available. However, on some Android phones, the "scan document" option now appears within the Documents app, under the Attach button, just like on iPhones. If, when opening Documents, you see "Select from Files," "Select Photo or Video," and "Scan Document," you can use the same workflow described for iOS and send the result instantly.

If it's still not showing up, the easiest alternative is Google Files , a widely used file manager that includes a dedicated button for scanning documents. It works almost exactly like WhatsApp on iPhone: it detects edges, corrects perspective, and lets you apply filters before converting everything to a PDF. Then you just have to share that PDF via WhatsApp directly from the Files menu.

The process with Google Files is simple and fast, even when scanning multiple pages. When you open the scan function, you'll see the camera with automatic capture that takes a picture when it frames a rectangle; if you're not happy with the result, you can switch to manual mode and tap when you're ready. The system saves each page in a preview and lets you remove borders, crop it, or apply contrast filters to make the text easier to read.

• Scan all the pages you need. When you're done, tap Done. The app will create a PDF with the processed images, organized and ready for use.
• Open the PDF from Files and choose ShareSelect WhatsApp, choose the contact or group, and add a comment if applicable before sending.
• If your manufacturer doesn't include Files by Google by default, you can download it for free from the Play Store. It's lightweight and also adds other utilities to manage your storage.

Although this alternative involves an extra step, in practice it takes very little time and the result is very similar to that of the built-in scanner. When WhatsApp enables the option generally for all Android users, the process will be even simpler, since you won't have to leave the conversation to digitize the paper in front of you.

A helpful security tip: password-protecting PDFs when saving them to your file manager is a good practice if you work with confidential information. Avoid sending sensitive data to strangers, and if you work with confidential information, consider password-protecting PDFs when saving them to your file manager. Finally, always try scanning on a high-contrast surface in good lighting; if you see a green border on the screen or precise automatic cropping, it's a sign that the detection is working correctly.

With all of the above, scanning from WhatsApp becomes an everyday task: open the chat, take a note, review it, and send it. Whether for tickets, receipts, notes, or contracts, the experience is quick and straightforward . If you don't yet have the feature, Google Files on Android perfectly fills the gap until the update with the native option arrives.

Thanks to its integrated scanner, editor with cropping and filters, and PDF generation capabilities, WhatsApp is establishing itself as a comprehensive tool for managing paper documents on the go . Between its availability on iPhone, its ongoing rollout, and the robust alternatives on Android, you can now digitize documents with clear results and immediate delivery, keeping your conversations and documents unified in one place.