PDF One vs Hanjjok
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
PDF One
Manage and edit PDF documents with ease. This app offers a powerful viewer, editor, and reader to merge, rotate, delete, and split PDFs. Convert PDFs to images and organize your files efficiently.
- PDF viewing and editing
- Merge multiple PDFs
- Rotate and delete pages
- Split PDFs
- Convert PDF to image
- E-book reader functionality
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* Simple and easy to use, a true 'PDF Editor' Equipped with a powerful PDF viewer, e-book reader, and PDF editor, it allows you to manage your documents efficiently anytime, anywhere. * True to the basics. - Perfectly displays PDFs according to standards. - Powerful search function. - Allows you to see the structure of the document at a glance. * Powerful editing features - Merge multiple PDF documents into one. - Rotate PDF documents. - Delete unnecessary pages. - Split one PDF into multiple files. - Convert PDF to image files. Download 'PDF Editor' now and experience all the features for free! (The PDF Editor app does not have any annoying or surprising ads.)
Hanjjok
Easily open, view, and convert Korean document formats like HWP and HWPX to PDF on your mobile device. Print documents directly or extract text for sharing, all without needing a PC. Handles documents offline for privacy and convenience.
- Open HWP and HWPX files
- Convert to PDF
- Print via AirPrint
- Extract text
- Offline document handling
- Korean font support
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Open the HWP and HWPX files you were sent, then turn them into a PDF or print them β from your phone. Hanjjok is a light viewer for HWP and HWPX, the document format used by Korean government offices, public institutions and schools. It is built around a single situation: a file has arrived, you need to read it and do something with it, and there is no PC in front of you. What it does - Opens HWP and HWPX quickly. Pick Hanjjok from the share sheet in KakaoTalk, Mail or Files and the document opens. - Reads PDF as well, so an attachment of either kind lands in the same place. - Prints over AirPrint to any printer your iPhone or iPad can reach. - Converts to PDF in one tap, then passes it on to mail, a messenger or a cloud drive. - Exports only the pages you choose, as a PDF or as images, to share or to print. - Extracts the text of a document so you can copy or share the wording itself. - Detects landscape pages and prints them in landscape without being asked. - Shows a first-page thumbnail, so you can tell which document is which. - Keeps what you opened in one list, and clears out the ones you no longer need. - Handles your documents offline. No account, no sign-up, no cloud sync β every document you open is processed on the device and is not transmitted anywhere. Korean documents on an English device The app follows your device language, so Hanjjok itself reads in English. A Korean font ships inside the app and draws the text in your documents, so Korean should appear as letters rather than empty boxes even on a device with no Korean font installed. Document content is never rewritten or translated β you see the file as it was written. Advertising While a document is open and you are reading it, Hanjjok shows no advertising. An ad appears only at a result action β converting to PDF, printing β and only briefly, and the result follows immediately after. If you would rather not see advertising at all, Remove Ads is a one-time purchase that lasts for the lifetime of the app. You can also watch a single ad to switch advertising off for 24 hours. Support hanjjok@reply.codesand.co.kr
Screenshots
Verdict
The clearest difference is review sentiment: Hanjjok at 100% against PDF One's 0%. Hanjjok also leads on update cadence (weekly vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. PDF One sells 1 one-off in-app purchase and Hanjjok sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
PDF One ships an update every 6 months, Hanjjok weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | PDF One | Hanjjok |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 100.0% of reviews β better |
| Update frequency | Every 6 months | Weekly β better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details β not scored | ||
| Size | 114 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Y Mobile Solution Co. , Ltd. | CodeSand Co. Ltd. |
Customer experience
PDF One
Hanjjok
In-app purchases
PDF One
- Ad Removal (Lifetime Free)$3.99
Hanjjok
- κ΄κ³ μ κ±°$3.49









