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Offline PDF toolkit · Android
Merge, split, and compress PDFs on your phone
ViaPDF has thirteen offline PDF tools for the Android phone you already have. Combine files, pull pages out, and shrink a PDF to a size you can see. Also: Images to PDF, Organize pages, Grayscale, Crop margins, Page numbers, PDF to images, Text stamp, and Unlock (removes a password you know; Android 15 and later). No account. No upload. The first export is free.
- Files stay on your phone
- No account
- First export free
- Android now, iPhone soon
Free to download. The full toolkit is a one-time purchase, and Google Play shows your local price. No subscription.
Works fully offline No account No ads First export free Pay once, no subscription
Download ViaPDF free
On Google Play for Android 7.0 and later. Open a PDF from Files or share one in. No sign-up, no email, no upload.
Full toolkit · pay once · no subscription
Screenshots
A PDF toolkit that shows the result before you send it
Thirteen tools, the page order, the real file size, the words on the page, and a one-time unlock. These are the screenshots from the Google Play listing.
Video
See ViaPDF in 30 seconds
Thirteen tools, a real file size before you share, and everything on the phone. The video loads from YouTube only when you press play.
How it works
From a file on your phone to a file you can send
No account to create and nothing to upload. You pick the tool, check the result, and export when it looks right.
Start with a file or a tool
ViaPDF opens on Tools, with an Open PDF button and thirteen tools in four groups. Tap Open PDF and then pick a tool, or pick a tool and then choose the file.
Add the PDF
Choose it from Files, or share a PDF into ViaPDF from another app. The file is ready on the device. You do not sign in.
Check the result
Set the page order, select a range, compare the compressed size, turn a page, or read the recognized text. Compress shows NN% smaller, with the Original and Compressed sizes, before you export.
Save or Share
Every tool ends in Save and Share. The first one is free. After that, unlock once. The new PDF stays on your phone until you send it somewhere yourself.
Why ViaPDF
The PDF jobs a phone should finish
Built for people who need a file done on the device they are holding, then want to get on with the rest of the day.
On the phone
There is no account and no upload. All thirteen tools run locally. A PDF leaves the phone when you tap Share or Save.
Honest sizes
Compress shows NN% smaller with the Original and Compressed sizes, or fits a file under 2, 4 or 5 MB. You export after the number makes sense.
Thirteen tools
Combine and split: Merge, Split, Organize pages, Images to PDF. Shrink: Compress, Grayscale. Fix pages: Rotate, Crop margins, Page numbers. Text and export: OCR, PDF to images, Text stamp, Unlock (a password you know, Android 15 and later).
Page control
Hold and drag pages to reorder them in Merge or Organize pages, type a range like 1-3, 5 when you split, and rotate one page or every page.
Text from scans
A text layer can be copied directly. A scan is recognized on the device. Save searchable PDF when the words should stay in the file.
Recents
The Recents tab lists files you open and results you save. Search by file name or filter by tool. It keeps the last 100.
A real free export
Open any tool and look at the result. The first Save or Share is free. ViaPDF adds no watermark of its own, and there are no ads.
Pay once
Unlimited exports are a single purchase. Google Play shows the local price on the unlock button. No subscription.
Works offline
Processing does not wait on a connection. Install the app when you have a signal. Use the tools when you do not.
Free vs unlock
One free export. Then pay once.
Finish a real job before you buy anything. When you need another export, unlock the toolkit once. Google Play shows your local price. No subscription.
Free
$0
Enough to finish one real job and send one file.
- All thirteen tools
- See the result before you pay, including the real compressed size
- First Save or Share is free
- On-device processing, no account, no upload
- Copy text from a page to the clipboard
- No ads and no watermark
Full toolkit
Pay onceGoogle Play shows your local price · not a subscription
Unlimited exports. Google Play shows the price for your country on the unlock button.
- Unlimited Share and Save
- Lifetime license on your Google account
- All thirteen tools, with no export limit
- Searchable PDF export from OCR
- Works offline after the purchase is confirmed
- Restore purchases in Settings on a new phone
Guides
PDF guides for the job in front of you
How to merge, compress, split, convert, crop, number, and unlock PDFs on Android, and how the free export and the one-time unlock work.
Merge
Merge PDF files on Android
Combine two or more PDFs into one file, set the page order, and drop pages you do not need. On your phone, offline.
Read the guide →CompressCompress a PDF on Android
See the real new file size before you share. High, Medium, or Small, with the before-and-after numbers on screen.
Read the guide →SplitSplit a PDF on Android
Pull out the pages you need, or type a range like 1-3, 5. ViaPDF saves that selection as a new PDF on your phone.
Read the guide →MergeCombine PDF files into one
Turn a pile of separate PDFs into one attachment: invoice, contract, receipt. Set the order, then share a single file.
Read the guide →CompressReduce PDF file size for email
When an attachment is rejected, shrink the PDF on your phone and check the new size before you send it again.
Read the guide →SplitExtract pages from a PDF
Keep page 4, or pages 2 through 6, as a new PDF. Type the range or tap the thumbnails. The original stays intact.
Read the guide →OCRCopy text from a PDF
If the PDF has real text, copy it. If it is a scan, ViaPDF recognizes the page on your phone so you can copy that too.
Read the guide →RotateRotate PDF pages
Turn a sideways scan upright. Rotate every page, or only the pages that are wrong, by 90 degrees at a time.
Read the guide →PDF to imagesConvert a PDF to JPG on Android
Save pages as JPG (smaller files) or PNG (sharper text) in Pictures/ViaPDF on Android 10 and later, or share them to another app.
Read the guide →UnlockRemove a password from a PDF on Android
Unlock makes an unprotected copy when you know the password. Android 15 and later. It does not guess or recover passwords.
Read the guide →Page numbersAdd page numbers to a PDF on Android
Pick the position and style, set the first number, and save a numbered copy.
Read the guide →CropCrop PDF margins on Android
Trim the white edges automatically, or with a fixed margin from 1% to 20%, with a preview of page 1.
Read the guide →GrayscaleConvert a PDF to grayscale on Android
Turn every page black and white and save a new copy.
Read the guide →PrivacyAn offline PDF app
Thirteen tools with no account and no upload. The PDF stays on your phone.
Read the guide →StampAdd a text stamp to a PDF
Put Draft, Paid, Copy or your own label on every page. Pick the placement, colour and opacity. On your phone, offline.
Read the guide →
FAQ
Questions people ask before they install
Straight answers about the thirteen tools, privacy, and what the free export includes.
How do I merge PDF files on Android?
Open ViaPDF, tap Merge, and add the PDFs with Add PDF. Under Pages in order, hold and drag a page to move it, or tap × to remove one. Tap Merge N pages, then Save or Share. The merge runs on your phone, and the first export is free.
How do I combine several PDFs into one file?
That is the Merge tool. Add each PDF, put the pages in the order a reader should see them, and tap Merge N pages to get one file, Merged.pdf. The originals stay as separate files.
How do I compress a PDF on my phone?
Tap Compress, add the PDF, choose High, Medium, or Small, or Fit under a size for a limit such as 2 MB, and tap Compress. A card shows NN% smaller with the Original and Compressed sizes before you export. If the file cannot get smaller, it says Already as small as it gets.
How do I reduce a PDF so an email will accept it?
Compress at Medium and read the new size. If you are still over the limit, switch to Small, or use Split to extract the pages you need and compress that shorter file.
How do I split a PDF and keep only some pages?
Tap Split and add the PDF. Type a Page range such as 1-3, 5, 8-10, or tap page thumbnails. The two stay in sync. Tap Extract N pages. The selected pages save as one new PDF, not one file per page, and the original is not changed.
How do I extract one page from a PDF?
In Split, type the page number in the Page range field, or tap that thumbnail, then tap the Extract button. You get a new PDF with just that page.
How do I rotate a sideways PDF?
Tap Rotate and add the PDF. Tap a page to turn it 90° clockwise, and a small badge shows 90°, 180°, or 270°. The All pages bar turns every page left or right, and Reset clears your changes. Tap Rotate to write a new file.
How do I copy text from a PDF, including a scan?
Tap OCR and open the PDF. ViaPDF reads the text layer if there is one, and otherwise recognizes the text on the page. Tap Copy text to copy the current page. Find in document searches the rest. Copying is always free.
Can ViaPDF OCR a scanned PDF?
Yes. OCR recognizes the text on your phone. You can copy it, or tap Save searchable PDF to get a new file named Searchable.pdf. OCR warns you above 50 pages.
How do I reorder pages in a PDF?
Use Organize pages. Add the PDF, hold and drag pages into the order you want, and tap × to delete a page. Undo brings it back, and Reset returns to the original order. Tap Save N pages to write Organized.pdf.
Can I turn a PDF into JPG images?
Yes. Open PDF to images and choose JPG (smaller files) or PNG (sharper text). All pages are selected at first, so tap pages to change the selection, then tap Convert N pages. Save puts the images in Pictures/ViaPDF on Android 10 and later. Share sends them to another app. On Android 7 to 9, only Share is offered.
Can I remove a password from a PDF?
Only if you know the password. Unlock asks for it and makes an unprotected copy, Unlocked.pdf. The original is not changed. A wrong password shows “That password didn't work.” Unlock does not guess, recover, or crack passwords. It needs Android 15 or later; on Android 14 and earlier the tool says it needs Android 15.
Can I add page numbers to a PDF?
Yes. Open Page numbers, choose a position (Bottom centre, Bottom right, or Top right) and a style (1, 1 / 9, or Page 1), and set Start at for the first number. Tap Add page numbers to save Numbered.pdf.
Can I crop the white margins off a PDF?
Yes. In Crop margins, choose Automatic to find the white edges on each page, or Fixed margin to trim 1% to 20% from every edge. A preview of page 1 shows the cut. Tap Crop margins to save Cropped.pdf.
Can I make a PDF black and white?
Yes. Open Grayscale, add the PDF, and tap Convert to grayscale. Every page becomes black and white, and the result saves as Grayscale.pdf.
Can I put Draft or Confidential on every page?
Yes. Text stamp lets you type up to 40 characters or tap a suggestion: Draft, Paid, Copy, or Confidential. Choose Diagonal, Top, or Bottom, one of four ink colors, and an opacity, then tap Add stamp. The stamp goes on every page of a new copy, Stamped.pdf.
Does ViaPDF upload my PDFs?
No. All thirteen tools run on the device. The Play data-safety form reports no data collected and no data shared. A file leaves the phone when you tap Save or Share.
Is there a PDF app without a subscription?
ViaPDF is free to download, the first export is free, and the full toolkit is a one-time purchase, and Google Play shows your local price on the unlock button. There is no monthly plan and there are no ads.
What PDF tools are included?
Thirteen tools in four groups. Combine and split: Merge, Split, Organize pages, Images to PDF. Shrink: Compress, Grayscale. Fix pages: Rotate, Crop margins, Page numbers. Text and export: OCR, PDF to images, Text stamp, Unlock. Tools write a new PDF as page images, so text in a result is not selectable unless you run OCR and save a searchable PDF. ViaPDF does not edit page content, fill forms, sign, scan with the camera, convert PDFs to Word, or add a password to a PDF. Android 7.0 or later is supported, and Unlock needs Android 15.
Is the first export really free?
Yes. You can run the tools and look at the result, and the first Save or Share is free. After that, a one-time unlock covers the rest.
What happens to a file if I have no signal?
You can still use all thirteen tools. ViaPDF does not need a connection to process a PDF. Downloading the app, and confirming a purchase, can require one.
Start with one file
Finish the PDF on the phone you have.
Download ViaPDF free on Android. Your first export is on us. Unlock the toolkit once when you need the next one.
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