PDF Properties vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Properties
View and edit metadata for your PDF files, including title, author, subject, keywords, and application. Protect your privacy by deleting sensitive property information before sharing documents. Access the PDF content directly from the properties screen.
- View PDF property information
- Edit title, author, subject, keywords, application
- Delete property information
- Save edited properties
- View PDF content
- Read-only for protected PDFs
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PDF Properties App displays and edits the property information of PDF document. You can check the author name of the PDF document and the file name before PDF conversion. You can also delete property information that you forgot to delete. First of all, open the PDF document on the home screen. When you open the PDF document, the property information is displayed. Property information will be displayed in 8 items for description and 7 items for security. There are five property items that can be edited: "Title", "Author", "Subject", "Keywords", and "Application". Tapping the "All Delete" button at the bottom of the screen will delete all five items. Tap the "Save" button to save the edited property item. Also, protected PDF documents are opened as read-only. Therefore, you can not edit and save the property information. If you tap the "View PDF" button, you can check the contents of the PDF document displayed in the property.
E
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E-invoce QR reader , that reads any QR code on bills issued by the E-Invoicing System
Screenshots
Verdict
The clearest difference is price: E at Free against PDF Properties's $2.99. E also leads on update cadence (every 2 days vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
E is free to download; PDF Properties costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PDF Properties ships an update every 4 months, E every 2 days. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.
| Parameter | PDF Properties | E |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Kei Suefuji | TRIANGLE INFORMATION FOR SOFTWARE DEVELOPMENT |
In-app purchases
PDF Properties
No in-app purchases
E
No in-app purchases
