1) Fast, reliable viewing and annotation: Opens large PDFs instantly with smooth rendering, zoom, bookmarks, and page navigation. Includes annotation tools (highlight, underline, comments, stamps, shapes) for easy markups, collaborative review, and exporting annotated files while preserving layout and searchability.
2) Powerful editing and conversion: Edit text and images directly within PDFs, rearrange, insert, delete, split, and merge pages. Built‑in OCR converts scans to editable text, and export options (Word, Excel, images) simplify repurposing content without losing formatting.
3) Security, signing, and cloud integration: Protect documents with password encryption and redaction, apply digital signatures, and set permissions. Built‑in compression reduces file size for sharing, while seamless cloud and email integration enables secure syncing, backup, and one‑click sharing across devices.
1. Limited advanced editing and export features: The app often lacks professional tools like precise redaction, batch processing, layer handling, form creation, and high-fidelity export. Complex edits require workarounds or external software, causing formatting loss, inconsistent fonts, and reduced control for power users needing robust PDF manipulation.
2. Performance and stability problems: Large, scanned, or multimedia-rich PDFs can load slowly, stutter during navigation, or cause crashes. Rendering complex pages, embedded fonts, or high-resolution images may consume excessive memory and CPU, making the app sluggish on older devices and interrupting productivity during critical editing or review sessions.
3. Privacy and security concerns: Some versions require cloud uploads or broad permissions, exposing sensitive documents to third-party servers. Encryption and access controls may be limited or inconsistently applied, increasing risk of unauthorized access or data leakage—particularly problematic for confidential contracts, medical records, or corporate files.
If you’re an Android user and don’t download the app from the official Google Play Store, you may find the installation process more complicated than usual.
But we are delighted to inform you that you don’t need to worry. To ensure you could install this app smoothly, we have written and uploaded a detailed tutorial. It would guide you on installing an app after downloading it from our website step by step, with the help of pictures.
You may find this helpful article on the downloading site, or visit How to install APK/XAPK files on Android.
If you need further help, please do not hesitate to contact us via email [email protected].
We fully understand your concern about safety. We agree that one person wouldn’t be too careful in the cyber world. Meanwhile, we are happy to tell you that one of our priorities is to provide our users with safe app files that they can use without any worries.
We guarantee that all the app files we provided originate from official and reliable sources. We promise that they do not contain any malware that will harm your hardware or the safety of your privacy.
We are glad to let you know that the vast majority of apps on our website are available for free download. Only a small selection of apps require payment, and their prices are set solely by the respective developers—we simply provide an official and secure download platform.
Rest assured, whether an app is free or paid, every download link on our site is verified and completely safe. You can download with confidence, and no account registration is needed—just click the download button and you're all set!
Recently we received a lot of emails from our users, which said they couldn't log in for different reasons, such as "forgot the user name or password" or "had a new phone." We are willing to help you out. Please read the notes below to see what we can do.
To answer this question, please first let us know which account you’re referring to.
If you're referring to your account of some app, like your Facebook account or your Youtube account. Unfortunately, we would not be able to help in this case. We would suggest you turn to the customer service of this application.
If you’re referring to your Appurse account, we should apologize for your confusion since there is no Appurse account. We never require registration for our service, and you will not find any procedure related to creating an account or registering on our website.
This question is essentially quite similar to the prior one. It’s a pity that we are unable to help you to cancel the subscription to a third-party application directly, while we would suggest you to contact its customer service for further information.
Sorry that we are unable to help you to get a refund from a third-party application directly. If you wish to get a refund from a third-party app, we would suggest you to contact its customer service. We would be happy to provide you the way to contact them.
If you want a refund from us, we should apologize for your confusion. Our service is 100% free, and any payment information is not required.
If you run into any site that asks you to provide your payment information, be careful. Remember never reveal your payment information to any unauthorized third parties, no matter how attempting their offer may seem.
Sorry that we cannot answer this question directly, for this only aims to answer some general questions. You may find how to use a certain app by checking our review page.
