PDF guides for merge, compress, split, and OCR
How to finish a PDF on Android: combine files, shrink one enough to email, pull out pages, convert pages to JPG, crop margins, add page numbers, add a text stamp, remove a password you know, and copy the text. Each guide ends in the ViaPDF controls that do the job.
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 →PrivacyAn offline PDF app
Thirteen tools with no account and no upload. The PDF stays on your phone.
Read the guide →PricingA PDF app with no subscription
Try every tool. The first Share or Save is free. Then unlock the toolkit once. Google Play shows your local price. No monthly plan, no ads.
Read the guide →OCROCR a scanned PDF
Turn a photo of a page into words you can copy, search, and save back into a searchable PDF. On device.
Read the guide →MergeReorder PDF pages
Hold and drag pages into the order a reader expects, and delete a blank, without uploading the file. One PDF in, one PDF out.
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 →Choosing an appWhat a phone PDF toolkit should do
Thirteen tools cover the PDF jobs people repeat on a phone. Here is how ViaPDF handles each, and what it leaves out.
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 →CompressCompress a PDF to 2, 4 or 5 MB
Pick the limit the upload form gives you, and ViaPDF keeps the sharpest version that fits.
Read the guide →Images to PDFTurn photos into one PDF
Photos of a lease, receipt or form become one PDF, a page per photo, in the order you set.
Read the guide →CompressCompress a PDF to 1 MB or less
Portals that cap uploads at 1 MB, 500 KB or 200 KB: type the limit and see what each PDF can reach.
Read the guide →CompressPDF too large to email
The attachment limits to check, then whether to compress once, send fewer pages, or split the file across emails.
Read the guide →MergeCombine scanned pages into one PDF
When a scan saves one PDF per sheet: join them, set the order, turn sideways pages, and make the text searchable.
Read the guide →Ready to finish the file?
Download ViaPDF free on Android. Offline, first export free, one-time unlock.