What should you do if you want to deal a 30 MBPDFand your mail customer only lets you attach 25 megabyte files ? Well , you could always use acloud memory option . But if you want to make thing truly convenient for the receiver , the good affair to do is to apply a PDF compressor . These handy tools will optimize your PDF size of it by get rid of supernumerary content and trim back the solving of images . There are mint of PDF compressor options on Android . We ’ve compiled a list of the best I . Read on to find out . We tested these using the undermentioned examination methodology :
Read : How to Remove Watermark from PDF in Three Simple Steps
The Test Sample
Our test sample is a 20.05 Mbit PDF of a undivided chapter from a high school textbook . This is freely usable to the publichere . As you could see from the screenshot below , it ’s make plenty of gamy - resolution image interspersed with the text edition itself . Text condensation is easy . The real economic value of a PDF compressor is in terms of how well it can handle multimedia system and this is exactly what we ’re prove here . At just over 20 MB , this is n’t a filing cabinet that ’s commodious to email . It brushes right on up against the email fond regard limit of many email client — Gmail , for instances , caps attachments at 25 megabit .
Our Testing Methodology
We tested each PDF Compressor app in the same way . We ran each app at its default densification setting — we did n’t make any changes to file format or contraction timber to eliminate bias . We memorialize both the final file size and the time it took to compress the file cabinet . The apps were tested on an LG G7 , with a Snapdragon 845 processor and 4 GB of RAM . This is a high - end 2018 Android flagship smartphone so expect real - world performance to be slower on more budget - well-disposed devices . Some of the PDF Compressors required the file to uploaded to the cloud . This was done over a 2 Mbps WiFi connection .
The Apps we tested
We tested out the following PDF Compressor apps :
1. iLovePDF
Who it ’s for : drug user who require an all - in - one PDF kit
We were impressed with iLovePDF right off the bat : It ’s stimulate a simple port with tiles for each PDF function you want to use . Apart from PDF compression , it also allows you to merge and split PDFs , digitally sign PDF documents , annotate them , and convert them to the JPG data formatting , among other function . For PDF transition , iLovePDF uses a cloud - free-base answer . You select your PDF of selection and it upload it to a server where the actual compaction is done . This can lead to slow compression prison term if you ’re using slower internet . We gain a custom roof on an otherwise blaze - tight 100 Mbps contrast and are stuck with 2 Mbps for the rest of the month . At this speed , it accept 2 minutes and 58 seconds for iLovePDF to upload the test file cabinet , compress it , and download the compressed translation .
We look the process to be much quicker with a immobile link . We were very impressed with iLovePDF ’s compression solution : It trim down the data file size by an incredible 87.5 percentage . This took our test filing cabinet from an clumsy 20 MB to just over 2 MB . Now that ’s real densification .
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2. AllPDF Reader
Who it ’s for : user who require a quick , offline PDF concretion
We were impressed with iLovePDF . But AllPDF ’s local concretion answer blew us aside in footing of speed . Compression time clocked at a simple 3 seconds . AllPDF Reader ’s contraction reduced the file cabinet size by 91 percent , down to just 1.9 MB . However , there is amajorproblem with AllPDF Reader ’s densification . The trial file we used didnotwork with the PDF Compressor . It outputted black pages with no data or pictures whatsoever .
Curious about whether or not the selection was completely broken , we prove out another trial data file , Tanzania ’s Human Development Report , available from the UNDP websitehere . Now , at Just 559 KB , this is already a passably optimise PDF , with just a few images and mesa . AllPDF Reader ’s compressor did work here , but only reduced the file size by about 10 percentage , down to 508 KB . We test out its other features too , like JPG conversion and these seemed to work very well . Nevertheless , we ’re concord off recommending AllPDF because its compressor does n’t seem to handle large PDFs very well .
3. PDF Compressor
Who it ’s for : Users who need a unmarried - purpose app for PDF compression
The name says it all with this app . Unlike the others in our lean so far , PDF Compressor really is a unmarried - use app . It compresses PDFs , terminal of story . Just like iLovePDF , it makes use of a cloud - based answer . But just how well does it do ? unhappily , not as well as we ’d have like . For freshman , it took a ridiculously foresightful 5 minute of arc and 10 seconds for the end to end procedure , from uploading the PDF to its waiter to contraction and download . Furthermore , the compression output was far from acceptable . iLovePDF attain a stellar 87 percent compression ratio . Here , we ’re looking at a mere .89 percent reduction in sizing , down to 19.87 M . Overall , it ’s hard to advocate PDF Compressor . Even if it ’s single - use solution , iLovePDF just does a safe job . And even if AllPDF Reader is less authentic , it provide so many more additional PDF purpose . We carry PDF Compressor might work on well with more text - intemperate files , but as it stands we suggest staying away from it .
Read:10 near PDF Reader Apps for Android Smartphones and Tablets
4. PDF Utils
Who it ’s for : A viable alternative to iLovePDF , for users who require a multipurpose PDF toolkit
What we ’ve seen so far is that there really is no ideal PDF compressor — they each have pretty major defect . We recall PDF Utils is the most balanced option so far . For starters , it use offline PDF contraction like AllPDF Reader , pull in for light fast compaction . We clocked compression amphetamine at just 3 seconds , a ligature with AllPDF Reader . However , unlike the earlier item , PDF Utils can handle larger PDFs with relative ease . Our in high spirits school textbook sample distribution was successfully converted and the output was legible . The compaction proportion is also moderate . PDF Utils brings the file size of it down to 8.49 Bachelor of Medicine , a 57.7 percent reduction in size of it . There is one caveat here . While grim and white-hot images are handled well , colour images appear to have their colour inverted . Unless your PDF has a lot of decisive vividness - sensitive items , like colouring - coded table , this is n’t too uncollectible of a compromise , though .
5. WPS PDF Lite
Who it ’s for : substance abuser who are already in the WPS authority app ecosystem
WPS PDF Lite is the slimmed - down version of WPS ’ PDF reader retinue . Unlike its bigger brother , WPS PDF Lite has a more focussed set of feature . It ’s still nonplus a few tricks up its sleeve though , include PDF camera scanning and digital sign language , apart from PDF compression . If you ’re looking for a consistent experience , this is a enough selection if you ’re already invested in the WPS app ecosystem — their office apps , in particular their word processing and presentation apps are among the good on Android . countenance ’s see how PDF compression fares , though . Taking just 6 seconds , it ’s pretty clear that WPS Office is an offline compressor . While it ’s tight , it ’s not very efficient . The standard compression set only reduces our PDF to 19.5 MB , a piteous 2.7 percent . This is still good than PDF Compressor ’s honestly laughable less than one percent outcome . Both PDF Compressor and WPS PDF Lite have good dramatic play Store reviews — they’re both above 4 star . We strongly suspect that the pathetic output here is because of their unfitness to cover image compression in effect . buy the farm by the number of positive reviews , we still think its worth give both these choice a chance , peculiarly if you ’ve got text edition - lumbering PDFs .
Conclusion:
It ’s hard to resolve on which of these is the best PDF Compressor app on Android . What we learned from our PDF compression experience is that most compressor apps on the dramatic play Store have lots of compromises — the decisiveness comes down to what you ’re comfortable missing out on , rather than what ’s right . We ’re noting here that the cloud - based solutions like iLovePDF and PDF Compressor can take more meter , specially if you have short connectivity . There ’s also the privateness issue regard with sending potentially sensible PDFs to an strange server .
Overall , though , the best cloud - free-base solution , and the best overall is iLovePDF . It ’s quite dim , but it gets the job done : With over 90 per centum densification , it still manages to retain image item . PDF Utils is our pick for an offline compressor . It ’s much quicker than iLovePDF and compression levels are still fairish . However , the semblance inversion egress could be a dealbreaker . Why determine yourself to compact PDFs ? chequer out our list on thebest image compressor appshere to find out how to compress your image , too .
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