PDF Edit & Convert: Browser and Mobile Tools for Everyday Paperwork

A 14-page lease arrives as a PDF. You need to sign page nine, send the whole document back as one file that fits under an email attachment limit, and keep an untouched copy for yourself. That is four different jobs, signing, reassembling, shrinking and archiving, and they do not all belong in the same tool.

PDF Edit & Convert is HELPERG’s name for a product that comes in three forms. HELPERG’s catalogue describes it as “browser-based PDF tools with local processing, and the PDF Editor app for iOS and Android”. This guide sorts everyday PDF jobs between the browser and the apps, and flags where the product’s own descriptions disagree, most importantly on what is free and on whether your files leave your device.

One product, three surfaces

• The website at pdfeditconvert.top offers free tools that run in a web browser. Its privacy policy names hrhelperg s.r.o., a Czech company, as the operator.
• The iPhone and iPad app is listed as PDF Editor: Converter files, with HRHELPERG LLC as developer and hrhelperg s.r.o. as seller.
• The Android app is listed as PDF Editor: Converter Files, with hrhelperg s.r.o. as developer.

The website’s statements about its browser tools describe those tools only; they do not establish the apps’ paywall or what the apps do with your files. Where the website does describe the app, in its FAQ, it does not always agree with the store listings or the app’s privacy policy, so the two need to be read separately.

Jobs that fit the browser

The website lists eleven free tools: image to PDF, merge, split, rotate, PDF to images, add a watermark, compress, PDF to Word, Word to PDF, reorder pages and extract pages. It states that “every tool on this page processes your files locally in your browser” and that “nothing is uploaded to our servers and nothing is stored”, and it describes the tools as free, with no signup and no watermark.

The site also spells out what its browser tools cannot do:

• PDF to Word extracts text only. The site says columns, tables, exact spacing, fonts and images are not reproduced, and that scanned PDFs will not work because they have no text layer and the browser tools cannot run text recognition on them.
• Compression changes the document. The site says compression re-renders each page as an image, so text in the output is no longer selectable or searchable, and that the compression is lossy, although a card on its home page says “Shrink files without losing quality”. It advises keeping the original if you need selectable text.
• Some files are out of reach. Password-protected PDFs cannot be processed in the browser, and very large files can exhaust a browser’s memory; for both, the site points to the mobile app.

That makes the browser the right place for structural jobs on documents you already have: putting pages in order, combining or splitting files, and making a copy small enough to send.

Jobs that need the app

The store listings describe a broader set of tools, including several that the browser tools do not offer: scanning paper documents with edge detection, extracting text from scans with OCR, editing text and images inside a PDF, adding highlights, underlines and sticky notes, and signing documents and filling in forms. The listings also describe converting between PDF and DOC, DOCX, JPG, PNG and CSV, creating blank PDFs, combining files and adding, removing or reordering pages. On both store listings, several of these tools are part of the Pro version, as the next section explains.

Where the paywall sits

Both store listings say the same thing: “Edit PDF Text, Convert Files, PDF Scanner, and E-sign & Fill are all part of the Pro version.” The App Store description adds that Pro unlocks the scanner “with unlimited scans”, “unlimited e-signature and form filling capabilities” and “unlimited file conversions”.

On the US App Store the listing shows six Editor PRO options, from $6.99 (“Weekly Special”) to $79.99 (“Yearly Access”), and a free trial on “Yearly Access”. Google Play shows an “In-app purchases” notice, and its app details give a range of $5.99 to $45.99 per item on the US storefront.

The website describes the app differently. Its FAQ says that “the core editing, scanning, compressing and signing features are free” and that “some advanced features unlock with PDF Editor Pro”. Until the two descriptions agree, treat the store listing for your platform as the description of the app, and check which tools are unlocked before relying on one. The website’s own browser tools are a separate matter: the site describes them as free.

Where your files go

In the browser, the site says your files are processed locally and that nothing leaves your device. The website itself does collect analytics: its privacy policy says it uses an analytics tool called WebmasterID, itself a HELPERG product, to record the page you visit, your approximate region and device type, and the referring site, and that it does not use advertising cookies.

In the app, the picture is different. The website’s FAQ says that files “stay on your device unless you choose to share them” and that “we do not upload your documents to our servers”. The privacy policy linked from both store listings says that for DOCX-to-PDF and PDF-to-DOCX conversion it uses CloudConvert, a service operated by Lunaweb GmbH in Germany, and that when you use those features, “your files are uploaded to CloudConvert’s servers for processing”. The policy adds that CloudConvert may temporarily store converted documents, that the developer may have access to files during the process for technical and troubleshooting purposes, and that users who prefer not to share files with this service should avoid the conversion feature.

The FAQ’s statement that “we do not upload your documents to our servers” can be literally true, since CloudConvert’s servers are not the developer’s own, but the practical answer for a reader is the policy’s: DOCX (Word) conversions in the app send the file off the device. For a confidential document, the policy’s own advice is to avoid the app’s file conversion feature; otherwise, accept that a third party will process the file. The sources do not establish that the app’s other features keep files on the device: the website’s FAQ says OCR “may require a connection”, and the policy does not say what its other listed providers process.

The same policy names services it uses “strictly for analytics, marketing, and subscription management” (Google Analytics, Firebase, OneSignal, Appsflyer and RevenueCat), and a separate list of third-party providers it “may use” that also includes the advertising networks Google AdMob and Liftoff Mobile and the AI companies Anthropic and OpenAI, without saying what each processes. The policy also says that data “is not used for profiling or sold to third parties”, and that the developer does “not sell or share personal data with third parties” except with law enforcement on lawful request and with service providers under data-processing agreements. In the store disclosures, which are the developer’s own declarations, the App Store label says usage data may be used to track you across other companies’ apps and websites and lists third-party advertising among the purposes for usage data. Google Play’s data-safety section says the app may share app activity, app information and performance data, and device or other IDs with third parties, but also declares “No data collected”, although the policy lists data it collects automatically; it adds “Data isn’t encrypted”, which Google Play explains as data not being transferred over a secure connection, and “Data can’t be deleted”.

A drawn signature does not settle every question

The app is described as able to add an electronic signature that can be reused across documents. Whether a particular signature is acceptable for a particular document is a different question, and it is answered by the law that applies and by the other party, not by the tool. The website’s own FAQ says it does not provide legal advice and recommends checking local rules on electronic signatures before relying on one for critical documents. If the other party names a signing method, use that one.

Back to the lease

An illustrative example. The document and its details are invented.

1. Keep the original. Save an untouched copy before you change anything.
2. Sign page nine. In the app, signing is part of the Pro version on both store listings. If you would rather sign on paper, print page nine, sign it by hand and scan it back; our guide to Smart Printer covers the printing step.
3. Reassemble the document. In the browser, use Extract PDF pages to save pages one to eight and ten to fourteen as separate files, then Merge PDF to combine them with the signed page in the right order.
4. Make it fit. If the file is over the attachment limit, compress it in the browser, remembering that the compressed copy’s text will no longer be selectable. Send that copy and keep the uncompressed one.
5. Check every page of the file you are about to send, in order.

If the landlord wants a fax rather than an email, our guide to FAX: send from phone covers that route. If the documents arrive bundled in a RAR or 7z archive, start with our guide to HELPERG’s ZIP and RAR extractor.

Listing details

The App Store lists the app for iPhone and iPad, requiring iOS 13.0 or later (iPadOS 13.0 on iPad), and Google Play’s app details give Android 7.0 or later; the website’s FAQ gives iOS 16 or later and Android 9 or later. Where these differ, check the store page for your device. The App Store showed version 2.0.1 as the latest when this guide was checked, and Google Play showed a last update of 25 October 2025.