The short answer: four steps
Use Compress PDF to 200 KB. It runs inside your browser, so your papers stay on your phone or computer. The 200 KB choice is already picked for you.
- Tap Choose PDF files. Pick the scan or certificate meant for one upload box. You can pick several PDFs together.
- Wait a few seconds. The bar says "Fitting it under 200 KB" and counts the tries: Try 1, Try 2 and so on. Each try is a full pass over your file. The page stops as soon as a try lands within 15% under the limit, or after six tries at most.
- Read the result. "Under 200 KB" means it fits. "Over 200 KB" means it could not get that small. "Already under 200 KB" means your original is fine as it is.
- Tap Download and upload the new file. Its name ends in -200KB.pdf, so marksheet.pdf becomes marksheet-200KB.pdf.
For one paper, that is the whole job. The rest covers the form's rules, several boxes, each message, and files that will not fit.
Try it first: tap "Try with a sample file" to watch it work on a made-up four-page scan before you use your real papers.
Open Compress PDF to 200 KBRead the form's rules, then check your file
A size limit is rarely the only rule. Read the form's notice in full and write down:
- The file type. Papers are usually asked for as PDF. A passport-size photo and a signature are often asked for as JPG pictures, with their own size rules.
- The size range. A maximum like 200 KB, and sometimes a minimum too, such as "between 50 KB and 200 KB".
- Files and pages. One file for each box, or one file for everything? Is there a page limit?
- Page size, colour and file name. Some forms want A4 pages, a colour scan, or a name without spaces or symbols.
Passport and visa forms set their own rules, and each country and office can change them. Trust the official notice on the form, not a friend's advice from last year. When it says 200 KB, everything here applies.
Then check how big your file is
You may not need to shrink anything. A typed PDF, such as a certificate downloaded from a portal, is often small already. Choose it on the page anyway. If it fits, the page says "Already under 200 KB, so you can use your original file".
Do this even when your phone says 199 KB. Some apps count 1 KB as 1,000 bytes and some as 1,024, so a file shown as 199 KB can be over 200,000 bytes, and a form that counts the other way will refuse it. This page counts 200 KB as 200,000 bytes, so a file it calls under 200 KB is under on every website. (The sizes it shows use 1,024-byte KB, so a file that fits may show as about 195 KB. That is normal.)
What kind of PDF do you have?
The page makes the pictures inside a PDF smaller and copies text and fonts as they are. So a scan, which is all pictures, behaves very differently from a typed file.
| Kind of PDF | Example | What to do |
|---|---|---|
| Typed or downloaded | A certificate saved from a portal, a resume saved from Word | Check it first: it may be under 200 KB already. If it is over, it may not shrink much, because its text and fonts are kept exactly. |
| Scanned | A marksheet scanned with a scanner or a scanner app | The pictures shrink to fit, so a scan always gets under. How clear it stays depends mostly on how many pages share the 200 KB. |
| Photos made into a PDF | Photos of an affidavit, joined with JPG to PDF | JPG to PDF puts JPG photos in exactly as they are, so the PDF is as big as the photos. It nearly always needs shrinking, as the last step. |
| Locked with a password | A bank statement or an e-Aadhaar download that asks for a password to open | Remove the lock first with Unlock PDF. You need to know the password. Then shrink the unlocked copy. |
| A mix of papers | Marksheets and certificates as separate files | If the form wants one file, join them with Merge PDF first, then shrink the joined file last. |
A PDF that opens without a password but blocks printing or copying needs no unlocking. The page shrinks it, and the new copy has no such restrictions.
Plan your upload boxes before you shrink anything
The 200 KB limit belongs to one file, not to your whole application. If the form has a box for each paper, every paper gets its own 200 KB and stays clearer.
If one box takes several pages, those pages share the 200 KB. In our tests, one scanned page stayed Sharp or Good, two to six scanned pages stayed Readable, and 14 pages fitted but small print became hard to read. The guide has the full table and a quick way to plan in how many pages stay clear in 200 KB.
Example 1: four boxes, one paper each
Say a job form (an example, not a real one) has four boxes with 200 KB each: ID proof, Class 12 marksheet, degree certificate and caste certificate. Each paper is one or two pages, so each file has plenty of room.
Choose all four PDFs together. Each becomes its own row with its own result and Download button, named like id-proof-200KB.pdf. Upload each into its own box, checking the names so the marksheet doesn't land in the ID box.
Example 2: one box for all certificates
Say another form has one box for "all educational certificates in one PDF, maximum 200 KB", and your papers come to six pages. Six pages in 200 KB is about 33 KB a page. In our tests, a six-page colour report kept 62 pixels per inch (ppi, how much detail a scanned page keeps) at that room: Readable, but softer.
So first ask whether all six pages are needed. A blank back or a cover page uses room too. Drop those with Organize PDF, join the papers in the order the form lists them with Merge PDF, and shrink the joined file last. If you shrink first and join later, the sizes add up: two 190 KB files make a file of about 380 KB.
Example 3: different limits for different boxes
Say a form gives the certificates 200 KB each but one paper only 100 KB. Use the same page: pick 100 KB under "Make it under". Files already added are done again at the new size, so do one limit at a time. Add and download the 200 KB papers, then switch to 100 KB and add the last one (ignore the earlier rows, now redone at 100 KB). The names tell the copies apart: -200KB.pdf or -100KB.pdf.
What the page is telling you
Each file gets a short message. Here is what each one means:
| You see | It means | What to do |
|---|---|---|
| Under 200 KB | The file fits. A line such as "Pictures: Good" says how clear the scanned pictures stayed: Sharp is 150 ppi or more, Good 100 or more, Readable 45 or more, and Rough anything below. | Download it. If it says Rough, read the small print first. |
| Already under 200 KB | Your original is small enough, and the page did nothing to it. | Upload the original. If the form has a minimum size, check the file is above it. |
| Over 200 KB | The file could not get that small. You get the smallest version possible, because most of what is left is text and fonts. | Send fewer pages, or see the next part. |
| This PDF can't get any smaller | Nothing in it could be made smaller, so keep your original. If that was over 200 KB, it still is. | The same fixes as for Over 200 KB. |
| This PDF is locked with a password | The PDF needs a password to open. | Remove it with Unlock PDF (you need the password), then try again. |
| This file can't be read as a PDF | The file may be damaged, or may not really be a PDF. | Download it or scan it again. |
| Only PDF files work here | You picked a photo, a Word file or another kind of file. | Make it a PDF first, with JPG to PDF for photos or Word to PDF for a Word file. |
| This PDF has a digital signature | Changing the file removes the signature's validity. | If the form needs that signature to stay valid, upload the original if it fits, or ask the form's help desk what to send. |
An ink signature you scanned is just part of the page's picture, not a digital signature, and it stays.
When the file will not go under 200 KB
Find your case below. The guide keeps the full list of fixes in when 200 KB isn't enough.
"Over 200 KB" on a short typed paper
Typed pages can't shrink, because their text and fonts are kept exactly. For one or two pages, turn them into a picture: make each page a JPG with PDF to JPG at Normal quality, put the JPG back into a PDF with JPG to PDF, then bring that under 200 KB. In our test, a 302 KB textbook page became 167 KB this way, Sharp at 187 ppi. The catch: the words can no longer be searched or copied, which an upload form doesn't need.
"Over 200 KB" on a long typed file
Don't use the picture trick here. Our 14-page research paper fitted that way (171 KB) but came out Rough at 42 ppi, with only the headings readable. Send fewer pages, or ask whether the first page alone is enough. The guide explains why in typed PDFs and 200 KB.
"Rough", or small print you can't read, on a long scan
Too many pages share the room. Try, in order:
- Cut the extras. The second copy, the blank back, the instruction sheet. Halving the pages gives each page about twice the room.
- Use another box. If the form has an "other documents" box, cut your PDF in two with Split PDF and add both parts to the page together. Each part gets its own 200 KB.
- Look for a bigger limit. Some forms take 500 KB or 1 MB for long papers, and the same page offers those sizes. In our tests, the four-page sample came out Good at 445 KB under 500 KB.
A copy that was squeezed before
Start again from your first scan. A copy made small for another form has lost detail for good, and squeezing it again loses more.
If the result is Rough and the form gives you no other way, upload it once you have checked that the numbers that matter can still be read, like a roll number or a date. A soft page is usually accepted. A file over the limit is not.
If you are scanning anyway, scan for 200 KB
A clean scan squeezes into 200 KB much better than a messy one. Shadows, grain and the table around the page all use up room.
- Use a scanner app, not a plain photo. A scanner app straightens the page and crops it to the paper's edge. Lay the paper flat, in even light.
- Keep colour unless the form asks for black and white. A grayscale copy of our four-page colour scan kept less than 3% more detail under 200 KB, and grayscale turns blue signatures grey.
- Sign and stamp clearly. Use a dark pen. Thin lines and light colours fade first when a page gets less room, and a smudged stamp only gets worse.
- Don't scan a typed document. If you have the original, such as a resume in Word, save it as a PDF directly. It keeps real text and is usually small.
Your passport-size photo and signature are a separate job, usually JPG pictures with their own size and pixel rules. This page works on PDFs only, and NoUploadPDF can't yet resize a JPG to a number of KB.
Check it before you upload
- Open the -200KB file and zoom in until the page is about as big as the real paper. Read the smallest print that matters: a roll number, a date, a seal.
- Check every page is there, in the order the form asks for. Organize PDF moves pages.
- Check they are upright. Rotate PDF fixes a sideways page. Do that before you shrink, so the size is the last step.
- Need A4 pages too? Change the page size first: the same page has a "Page size (A4)" choice. Then switch back to File size and add the A4 copy. Its name ends in -A4-200KB.pdf.
- Pick the right copy in the form's file picker: the one ending in -200KB, not the big original with a similar name.
The form still says no
The usual reasons a file under 200 KB is refused:
- It wants a different file type. A photo or signature box usually wants a JPG, not a PDF.
- The file is too small. This page only makes files smaller, never bigger. Scanning again at a higher setting gives a bigger file you can then bring under 200 KB. The guide's part on ranges like 50 to 200 KB explains.
- The upload broke off. A weak signal can stop an upload partway. Try again on a better connection, and don't leave it to the last day.
Phone problems, and how to get past them
The page should work in any up-to-date phone browser, such as Chrome, Safari or Samsung Internet, with no app to install. The trouble usually comes from moving files around:
- The scan doesn't show up when you tap Choose PDF files
- Some scanner apps keep scans inside the app. Save the scan as a PDF to your phone first.
- You can't find the new file
- The new copy saves to your Downloads. Look for the name ending in -200KB.pdf.
- The upload button opens the camera or the gallery
- Look for a choice such as Files or Browse. A PDF is not a picture, so it won't appear in the gallery.
- It seems to stop halfway
- Keep the page on screen while it works. A phone can pause a tab you have switched away from.
- The signal is weak
- Once the page has loaded, it works even with Wi-Fi and mobile data off. Only the upload to the form needs a connection.
Our tests ran in Chromium 141 (the engine Chrome is built on) on a computer, where our 14-page, 23.1 MB scan took 12.4 seconds. A phone may be slower.
Your certificates never leave your device
Aadhaar and PAN copies, marksheets and caste certificates are among the most private papers you own. Most online PDF tools send your file to their own computers to work on it. This page doesn't: a program inside your browser does the work, and the new file is saved straight back to your device.
There is no account, no watermark and no limit on files. Our privacy policy explains what the site collects, and the blog has guides for other PDF jobs.
Compress PDF to 200 KB, free and private: make a PDF under 200 KB, with several pages still clear.
Open Compress PDF to 200 KB