Document Reader & PDF Editor
A broad-format viewer with a PDF toolkit that goes past markup into the document's own text, all built on an automatic index of everything already sitting on your phone — an index that, on Android 11 and later, our con list records as requiring the All Files Access permission for full file management. That is the condition to settle at setup, because the index is the reason to install it.
- Students and office workers who receive a mix of formats — PDFs, Word files, spreadsheets, slide decks, RTF and plain text — and want them in one sorted list rather than hunting back through download folders; published feedback describes exactly this, with reviewers keeping lecture slides, invoices and spreadsheets in a single place
- Anyone whose document work is PDF-shaped: marking up, highlighting, editing the underlying text, dropping in an image, applying a drawn or imported signature, and sending the file back
- People who read and work on documents where the connection is unreliable — per the FAQ, reading, rendering, annotation, conversion and template editing all run on the phone itself
- Phone-only users who occasionally need to produce something formatted — a CV, a formal business letter, a fax cover sheet, an event poster — from a pre-built template rather than a blank page
- Anyone who would rather not grant All Files Access on Android 11 or later — our con list names it as the requirement for full file management capabilities, and the unified file list is the app's central feature
- People whose main job is changing Word and Excel files rather than reading them — per the FAQ those formats get universal reading and data viewing, while the text editing, annotation and electronic signing tools are optimized specifically for PDF
- Anyone who needs the cost of file conversion settled before committing to a workflow — our pro list credits conversion as a strength while our con list groups it with the paid capabilities
- Phones holding thousands of documents spread across multiple download folders, where our records note a slower initial scan and the same file showing up more than once in the list
Overview
The most useful thing this app does is also its least glamorous. It opens, reads the phone’s storage, and hands back one sorted list of every document already on the device — the PDF invoice, the lecture deck, the spreadsheet you downloaded and forgot about — with no need to remember which folder it landed in. The PDF editor, the converter and the template library sit on top of that index, but the index is the reason to install it.
One index, seven kinds of file
Our source material lists the formats the viewing engine parses natively: PDF, Microsoft Word (DOC and DOCX), Excel (XLS, XLSX and CSV), PowerPoint (PPT, PPTX and PPS), plain text, RTF, and standard image formats — most of what reaches a phone through email, chat and downloads.
Our own database entry describes the app scanning local storage directories on launch and categorising what it finds into clean, auto-updating folder lists, sortable by file type, modification date, path or file size — path being how you find the file you know arrived through one particular app, size being how you find the one quietly filling the phone. Published feedback describes precisely this use, with reviewers viewing lecture slides, invoices and spreadsheets in one app.
The All Files Access requirement on Android 11 and later
Our con list records that Android 11 and newer setups require granting All Files Access — the MANAGE_EXTERNAL_STORAGE permission — for full file management capabilities. The FAQ gives the stated reason for the request: in order to index, group and display your scattered office documents in a unified folder list without forcing you to browse paths manually, it says, Android mandates granting global storage access permissions.
That is a setup-time decision rather than one you can defer, so anyone who would rather hand a document app one folder at a time should know it is coming.
For what the app states it collects and shares, the Data safety section on the Play listing is the place to look: it carries the current disclosures, which a review written on a single date cannot.
The editing toolkit is built around PDF
What our records describe for PDFs is genuinely full: modifying the underlying document text with control over font style, size, alignment and colour; inserting images; drawing freehand annotations; applying highlight and strikethrough markup; and attaching digital signatures. Editing the underlying text of a PDF from a phone, rather than only marking it up, is the ambitious item on that list.
What the other formats get, the FAQ answers directly: the app provides universal reading and data viewing for Word and Excel files, while advanced text editing, annotation and electronic signing tools are, in its words, optimized specifically for PDF. Plan around that wording if the file you need to change is a spreadsheet or a Word document.
Signing, as the FAQ walks it through
The FAQ documents the signing flow step by step. Open the PDF, select the Sign tool from the editing toolbar, draw your signature on the screen or import a saved signature image, position it on the signature line, and tap save — which, per the FAQ, locks the signature layer.
Published feedback picks up the thread, with reviewers describing the convenience of signing agreements and returning PDF forms by email rather than printing and scanning.
Conversion, and a disagreement inside our own records
Our pro list credits the conversion tools as a strength, naming Image-to-PDF, Word-to-PDF and PDF-to-Word transformations; our source material adds that camera captures and gallery images become PDFs, and that PDF content extracts back into an editable Word file. The FAQ walks the image route end to end: PDF Converter, Image to PDF, capture or select, crop or rotate, convert.
Our con list, separately, records that premium features and conversion capabilities require in-app purchasing or subscription upgrades.
Those two entries do not agree. Conversion is a headline feature here, and our material is inconsistent about whether it costs money. We hold no price figures at all — no amounts, no tier names — which makes the in-app product list on the live Play listing the authoritative answer, and the first thing to check.
Templates and the reading controls
The template library is more substantial than we expected: pre-formatted resume and CV designs, formal business letters, fax cover sheets and event posters, all customisable in the app by editing the text fields and replacing the placeholder images. Getting a presentable one-page document out of a phone is mostly a layout problem, and the layout arrives already solved.
The presentation controls are a smaller feature that earns its place: portrait and landscape toggles, page orientation locks, and dark or light colour inversion. Orientation locks matter for spreadsheets and slide decks, where content wants width; inversion matters for reading something long in a dark room.
What still works with no connection
The offline story here deserves more than a shrug. Per the FAQ, reading, rendering, annotation, conversion and template editing all process locally on your mobile hardware without requiring cellular data or Wi-Fi. Our source material adds that the app operates fully offline without mandating cloud synchronisation.
Conversion is the item worth pausing on. Reading a PDF with no signal is ordinary; turning camera shots into a PDF, or pulling a PDF back into an editable Word file, with the phone in airplane mode is not.
Big libraries: the first scan, and duplicate entries
Two of the four recorded cons describe one situation — a phone carrying a lot of files. Our records note that the initial directory scan can cause temporary loading delays on devices with thousands of saved files, and that duplicate entries appear when identical documents are saved across multiple download directories.
Published feedback echoes both. One review reports slow initial startup while the app indexes very large local directory structures. Another asks for an auto-deduplication filter to group and hide repeated downloads of the same file — a feature request from users, which is a different signal from a recorded defect.
Both are scoped in our records to large libraries, and the scan cost is recorded as an initial one. With a few dozen PDFs, neither is likely to be your experience; with several thousand across a tangle of download folders, expect a slow first launch and the same file appearing twice.
What the store record shows
The Play listing’s Developer field reads “QR Code Scanner.”, and our source material gives the fuller form: QR Code Scanner (Deep Thought Industries).
The store signals are strong. A 4.5 rating across 449,877 ratings alongside 100M+ downloads is a large enough sample to be informative rather than noise, and Play lists the most recent update as July 28, 2026.
Who it’s not for
If your work lives in Word and Excel and involves changing those files rather than reading them, note what the FAQ says: those formats get universal reading and data viewing, while the editing, annotation and signing tools are optimized specifically for PDF.
If you need to know what conversion costs before committing to a workflow, check the live listing, because our records give two different answers.
And if your phone holds thousands of documents across several download folders, the recorded behaviour — a slow first scan, repeated entries — will meet you early rather than late.
Our take
We land at 4.4, a tenth under the 4.5 store average, and most of the reasoning is about what we decided not to charge for.
Six documented strengths carry real weight, and they are not variations on one idea: wide-format viewing, a PDF toolkit that reaches the underlying text, conversion in both directions, a template library, a genuinely offline design, and presentation controls that make long documents comfortable to read. That breadth goes some way to explaining a 4.5 across nearly 450,000 ratings.
The recorded paywall — premium features and conversion capabilities behind in-app purchase or a subscription — is the con most readers will meet, and it is the one we decided not to deduct for. A monetisation structure every user encounters is already inside an average built from 449,877 ratings: those raters met the same gate and scored the app anyway, so charging it again here would count it twice. We have declined to deduct for disclosed paywalls on that reasoning elsewhere, and a rule applied only when it lowers a number is not a rule. What might make this one different is that conversion is credited as a headline strength while the con list puts it behind payment — but that is a disagreement inside our own records, and our gaps belong in a methodology note rather than in a score.
What is left to weigh is the pair of large-library frictions: the slow first index and the duplicate entries. Both are real on the phones they affect, and both are narrower than the paywall — they land on people with thousands of files, not on everyone. A tenth is what they are worth.
What remains is a broad, genuinely offline document app with a serious PDF toolkit and a paywall around part of it — an easy recommendation for a phone that accumulates documents faster than anyone files them.
How We Evaluate
We assess every app against the same checklist: what it delivers versus what it promises, how honest the pitch is, where real users hit friction, and who should look elsewhere. We did NOT hands-on test this app — we did not install it, point it at a file library, convert or sign anything with it, or time its indexing pass ourselves. This assessment rests on our own database record for the app (its six recorded pros, four recorded cons, and our editorial description of the format engine, the launch-time storage scan, the PDF editing toolkit, the conversion module and the template library), the published FAQ — which is our source for the PDF-focused scope of the editing tools, the signing walkthrough, the image-to-PDF flow, and the list of tasks that run offline — the themes in published user feedback, and the store signals: a 4.5 rating across 449,877 ratings, 100M+ downloads, 7 screenshots, and the Developer field. One limit is worth flagging: the star labels attached to the published reviews we hold are not a reliable signal, so we describe the feedback themes without attaching ratings to them.
Pros & Cons
Universal file viewing engine opens PDF, Word, Excel, PowerPoint, and TXT files within a single unified client.
Advanced PDF editing tools allow direct text adjustments, image additions, highlights, and digital signatures.
Built-in file conversion tools handle Image-to-PDF, Word-to-PDF, and PDF-to-Word formatting transformations.
Pre-designed document template library simplifies creating professional CV resumes and business letters.
Offline operational design enables full file reading and editing without requiring an active internet connection.
Flexible presentation features include portrait/landscape toggles, page orientation locks, and dark/light color inversion modes.
- ✕
Initial directory scanning can cause temporary loading delays on devices with thousands of saved files.
- ✕
Duplicate entries appear in file lists when identical documents are saved across multiple download directories.
- ✕
Premium features and conversion capabilities require in-app purchasing or subscription upgrades.
- ✕
Android 11+ setups require granting All Files Access (MANAGE_EXTERNAL_STORAGE) permissions for full file management capabilities.
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Get it on App Store FAQs
Can I edit Microsoft Word and Excel files directly inside this application?
The app provides universal reading and data viewing for Word and Excel files. Advanced text editing, annotation, and electronic signing tools are optimized specifically for PDF formatted files.
How do I apply an electronic signature to a contract using this app?
Open your PDF contract, select the "Sign" tool from the editing toolbar, draw your signature on the screen or import a saved signature image, position it on the signature line, and tap save to lock the signature layer.
Why does the app request broad storage access permissions during setup?
To index, group, and display all your scattered office documents in a unified folder list without forcing you to manually browse paths, Android mandates granting global storage access permissions.
How can I convert a camera photo into a PDF file?
Tap the PDF Converter section, select "Image to PDF," capture a picture using your camera or select images from your gallery, crop or rotate pages as needed, and press convert to create your file.
Can I use this application without internet access?
Yes, all reading, rendering, annotation, conversion, and template editing tasks process locally on your mobile hardware without requiring cellular data or Wi-Fi.
Hot Reviews
Users express high satisfaction with being able to view lecture slides, invoices, and spreadsheets in one app without installing separate office suites.
Feedback highlights the convenience of signing digital agreements and returning PDF forms via email without needing physical printouts.
Some reviews report slow initial startup load times when the app indexes very large local file directory structures.
Users suggest adding an auto-deduplication filter to automatically group and hide repeated downloads of the same file across folders.